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Coefficients of a Polynomial

What is the s...

Question

What is the sum of the coefficents of $x$ in the polynomials $p (x) = 3 x + 9$ and $q (x) = 5 x + 8 ?$

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Solution

The correct option is D 8
The coefficient of $x$ in:
1) $p (x)$ = $3 x + 9 i s 3$ .
1) $q (x)$ = $5 x + 8 i s 5$ .

$∴$ Sum of coefficients = 3 + 5 = 8

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Similar questions

Now for each pair of polynomials p(x) and q(x) given below, find p(x) + q(x) and p(x) − q(x). Also compute p(1) + q(1) and p(1) − q(1) for each.

(i)

(ii)

(iii)

(iv)

(v)

P (x) + q (x) = x^{2} - 4 x + 1 a n d P (x) - q (x) = x^{2} + 5 x - 2

(x + 3) (x - 2)^{2} (x - 6)

p (x) = (x + 3) (x - 2)^{2},

q (x) = . . . . . . . . . .

p (x)

q (x)

(x + 3) (x - 2)^{2} (x - 6)

(x - 2)

p (x) = (x + 3) (x - 2)^{2}

q (x) =

p (x) = 3 x - 6

q (x) = 4 x - 12

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