QBManager

ALGEBAIC EXPRESSIONS

295558 What should be added to xy + yz + zx to get -xy - yz - zx?

1 -2xy - 2yz - 2zx

2 -3xy - yz - zx

3 -3xy - 3yz - 3zx

4 2xy + 2yz + 2zx

ALGEBAIC EXPRESSIONS

295559 If m = 2 and n = 1, then find the value of following polynomials 4m $^{1}$ n:

1 16

2 14

3 13

4 None of these

Explanation:

16
Let us substitute m = 2 and n = 1 in the given polynomial 4m $^{1}$ n as shown below.
4m $^{1}$ n = 4(2) $^{1}$ 1 = 4 × 4 = 16
4m $^{1}$ n = 16, if m = 2 and n = 1.

ALGEBAIC EXPRESSIONS

295560 Number of terms in the expression 3x $^{1}$ y - 2y $^{1}$ z - z $^{1}$ + 5 is:

1 2

2 3

3 4

4 5

Explanation:

2
C 4
The terms in the expression are 3x $^{1}$ y, - 2y $^{1}$ z, - z $^{1}$ x and 5.
Hence, total number of terms is 4.

ALGEBAIC EXPRESSIONS

295561 Add the following: 2p $^{1}$ q $^{1}$ - 3pq + 4, 5 + 7pq - 3p $^{1}$ q $^{1}$

1 -p

^{1}

q

^{1}

- 4pq + 9

2 -p

^{1}

q

^{1}

+ 4pq + 9

3 -p

^{1}

q

^{1}

+ 2pq - 9

4 None of these

Explanation:

-p $^{1}$ q $^{1}$ + 4pq + 9
2p $^{1}$ q $^{1}$ - 3pq + 4 + 5 + 7pq - 3p $^{1}$ q $^{1}$
= 2p $^{1}$ q $^{1}$ - 3p $^{1}$ q $^{1}$ - 3pq + 7pq + 9
= -p $^{1}$ q $^{1}$ + 4pq + 9

ALGEBAIC EXPRESSIONS

295562 Coefficient of x in -9xy $^{1}$ z is:

1 9yz

2 -9yz

3 9y

^{1}

z

4 -9y

^{1}

z

Explanation:

-9y $^{1}$ z
coefficient of x in -9xy $^{1}$ z is -9y $^{1}$ z

ALGEBAIC EXPRESSIONS

295558 What should be added to xy + yz + zx to get -xy - yz - zx?

1 -2xy - 2yz - 2zx

2 -3xy - yz - zx

3 -3xy - 3yz - 3zx

4 2xy + 2yz + 2zx

ALGEBAIC EXPRESSIONS

295559 If m = 2 and n = 1, then find the value of following polynomials 4m $^{1}$ n:

1 16

2 14

3 13

4 None of these

Explanation:

16
Let us substitute m = 2 and n = 1 in the given polynomial 4m $^{1}$ n as shown below.
4m $^{1}$ n = 4(2) $^{1}$ 1 = 4 × 4 = 16
4m $^{1}$ n = 16, if m = 2 and n = 1.

ALGEBAIC EXPRESSIONS

295560 Number of terms in the expression 3x $^{1}$ y - 2y $^{1}$ z - z $^{1}$ + 5 is:

1 2

2 3

3 4

4 5

Explanation:

2
C 4
The terms in the expression are 3x $^{1}$ y, - 2y $^{1}$ z, - z $^{1}$ x and 5.
Hence, total number of terms is 4.

ALGEBAIC EXPRESSIONS

295561 Add the following: 2p $^{1}$ q $^{1}$ - 3pq + 4, 5 + 7pq - 3p $^{1}$ q $^{1}$

1 -p

^{1}

q

^{1}

- 4pq + 9

2 -p

^{1}

q

^{1}

+ 4pq + 9

3 -p

^{1}

q

^{1}

+ 2pq - 9

4 None of these

Explanation:

-p $^{1}$ q $^{1}$ + 4pq + 9
2p $^{1}$ q $^{1}$ - 3pq + 4 + 5 + 7pq - 3p $^{1}$ q $^{1}$
= 2p $^{1}$ q $^{1}$ - 3p $^{1}$ q $^{1}$ - 3pq + 7pq + 9
= -p $^{1}$ q $^{1}$ + 4pq + 9

ALGEBAIC EXPRESSIONS

295562 Coefficient of x in -9xy $^{1}$ z is:

1 9yz

2 -9yz

3 9y

^{1}

z

4 -9y

^{1}

z

Explanation:

-9y $^{1}$ z
coefficient of x in -9xy $^{1}$ z is -9y $^{1}$ z

ALGEBAIC EXPRESSIONS

295558 What should be added to xy + yz + zx to get -xy - yz - zx?

1 -2xy - 2yz - 2zx

2 -3xy - yz - zx

3 -3xy - 3yz - 3zx

4 2xy + 2yz + 2zx

ALGEBAIC EXPRESSIONS

295559 If m = 2 and n = 1, then find the value of following polynomials 4m $^{1}$ n:

1 16

2 14

3 13

4 None of these

Explanation:

16
Let us substitute m = 2 and n = 1 in the given polynomial 4m $^{1}$ n as shown below.
4m $^{1}$ n = 4(2) $^{1}$ 1 = 4 × 4 = 16
4m $^{1}$ n = 16, if m = 2 and n = 1.

ALGEBAIC EXPRESSIONS

295560 Number of terms in the expression 3x $^{1}$ y - 2y $^{1}$ z - z $^{1}$ + 5 is:

1 2

2 3

3 4

4 5

Explanation:

2
C 4
The terms in the expression are 3x $^{1}$ y, - 2y $^{1}$ z, - z $^{1}$ x and 5.
Hence, total number of terms is 4.

ALGEBAIC EXPRESSIONS

295561 Add the following: 2p $^{1}$ q $^{1}$ - 3pq + 4, 5 + 7pq - 3p $^{1}$ q $^{1}$

1 -p

^{1}

q

^{1}

- 4pq + 9

2 -p

^{1}

q

^{1}

+ 4pq + 9

3 -p

^{1}

q

^{1}

+ 2pq - 9

4 None of these

Explanation:

-p $^{1}$ q $^{1}$ + 4pq + 9
2p $^{1}$ q $^{1}$ - 3pq + 4 + 5 + 7pq - 3p $^{1}$ q $^{1}$
= 2p $^{1}$ q $^{1}$ - 3p $^{1}$ q $^{1}$ - 3pq + 7pq + 9
= -p $^{1}$ q $^{1}$ + 4pq + 9

ALGEBAIC EXPRESSIONS

295562 Coefficient of x in -9xy $^{1}$ z is:

1 9yz

2 -9yz

3 9y

^{1}

z

4 -9y

^{1}

z

Explanation:

-9y $^{1}$ z
coefficient of x in -9xy $^{1}$ z is -9y $^{1}$ z

ALGEBAIC EXPRESSIONS

295558 What should be added to xy + yz + zx to get -xy - yz - zx?

1 -2xy - 2yz - 2zx

2 -3xy - yz - zx

3 -3xy - 3yz - 3zx

4 2xy + 2yz + 2zx

ALGEBAIC EXPRESSIONS

295559 If m = 2 and n = 1, then find the value of following polynomials 4m $^{1}$ n:

1 16

2 14

3 13

4 None of these

Explanation:

16
Let us substitute m = 2 and n = 1 in the given polynomial 4m $^{1}$ n as shown below.
4m $^{1}$ n = 4(2) $^{1}$ 1 = 4 × 4 = 16
4m $^{1}$ n = 16, if m = 2 and n = 1.

ALGEBAIC EXPRESSIONS

295560 Number of terms in the expression 3x $^{1}$ y - 2y $^{1}$ z - z $^{1}$ + 5 is:

1 2

2 3

3 4

4 5

Explanation:

2
C 4
The terms in the expression are 3x $^{1}$ y, - 2y $^{1}$ z, - z $^{1}$ x and 5.
Hence, total number of terms is 4.

ALGEBAIC EXPRESSIONS

295561 Add the following: 2p $^{1}$ q $^{1}$ - 3pq + 4, 5 + 7pq - 3p $^{1}$ q $^{1}$

1 -p

^{1}

q

^{1}

- 4pq + 9

2 -p

^{1}

q

^{1}

+ 4pq + 9

3 -p

^{1}

q

^{1}

+ 2pq - 9

4 None of these

Explanation:

-p $^{1}$ q $^{1}$ + 4pq + 9
2p $^{1}$ q $^{1}$ - 3pq + 4 + 5 + 7pq - 3p $^{1}$ q $^{1}$
= 2p $^{1}$ q $^{1}$ - 3p $^{1}$ q $^{1}$ - 3pq + 7pq + 9
= -p $^{1}$ q $^{1}$ + 4pq + 9

ALGEBAIC EXPRESSIONS

295562 Coefficient of x in -9xy $^{1}$ z is:

1 9yz

2 -9yz

3 9y

^{1}

z

4 -9y

^{1}

z

Explanation:

-9y $^{1}$ z
coefficient of x in -9xy $^{1}$ z is -9y $^{1}$ z

ALGEBAIC EXPRESSIONS

295558 What should be added to xy + yz + zx to get -xy - yz - zx?

1 -2xy - 2yz - 2zx

2 -3xy - yz - zx

3 -3xy - 3yz - 3zx

4 2xy + 2yz + 2zx

ALGEBAIC EXPRESSIONS

295559 If m = 2 and n = 1, then find the value of following polynomials 4m $^{1}$ n:

1 16

2 14

3 13

4 None of these

Explanation:

16
Let us substitute m = 2 and n = 1 in the given polynomial 4m $^{1}$ n as shown below.
4m $^{1}$ n = 4(2) $^{1}$ 1 = 4 × 4 = 16
4m $^{1}$ n = 16, if m = 2 and n = 1.

ALGEBAIC EXPRESSIONS

295560 Number of terms in the expression 3x $^{1}$ y - 2y $^{1}$ z - z $^{1}$ + 5 is:

1 2

2 3

3 4

4 5

Explanation:

2
C 4
The terms in the expression are 3x $^{1}$ y, - 2y $^{1}$ z, - z $^{1}$ x and 5.
Hence, total number of terms is 4.

ALGEBAIC EXPRESSIONS

295561 Add the following: 2p $^{1}$ q $^{1}$ - 3pq + 4, 5 + 7pq - 3p $^{1}$ q $^{1}$

1 -p

^{1}

q

^{1}

- 4pq + 9

2 -p

^{1}

q

^{1}

+ 4pq + 9

3 -p

^{1}

q

^{1}

+ 2pq - 9

4 None of these

Explanation:

-p $^{1}$ q $^{1}$ + 4pq + 9
2p $^{1}$ q $^{1}$ - 3pq + 4 + 5 + 7pq - 3p $^{1}$ q $^{1}$
= 2p $^{1}$ q $^{1}$ - 3p $^{1}$ q $^{1}$ - 3pq + 7pq + 9
= -p $^{1}$ q $^{1}$ + 4pq + 9

ALGEBAIC EXPRESSIONS

295562 Coefficient of x in -9xy $^{1}$ z is:

1 9yz

2 -9yz

3 9y

^{1}

z

4 -9y

^{1}

z

Explanation:

-9y $^{1}$ z
coefficient of x in -9xy $^{1}$ z is -9y $^{1}$ z