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Variable

What is the s...

Question

What is the sum of the coefficients of $x^{2}$ in the polynomials

$p (x) = x^{2} + 2 x + 1$
$q (x) = 3 x^{2} + 4 x + 2$ ?

A

3

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B

4

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C

5

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D

6

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Solution

The correct option is B 4
Coefficient of $x^{2}$ in $p (x)$ is 1.
Coefficient of $x^{2}$ in $q (x)$ is 3.

Sum of the coefficients of $x^{2}$ is 1 + 3 = 4

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Similar questions

Q. What is the sum of the coefficients of

x^{2}

in the polynomials

p (x) = x^{2} + 2 x + 1

q (x) = 3 x^{2} + 4 x + 2

Q. Form the sum of

(4 + 3 x - x^{2})

(5 - 4 x + 2 x^{2})

, subtract the sum of

(3 x^{2} - 5 x)

(- x^{2} + 2 x + 5)

Q. From the sum of

4 + 3 x

5 - 4 x + 2 x^{2}

, subtract the sum of

3 x^{2} - 5 x

- x^{2} + 2 x + 5

. What is the final result?

Subtract: 2 x^{2} + 6 - 4 x from 3 x^{2} - 6 x + 8.

2 x^{2} + 6 - 4 x

3 x^{2} - 6 x + 8

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