Question

If p(x) = 2x^2 – 4x and q(x) = x – 3, what is (p*q)(x)?

Answer 1

Answer: 2x2-16x+30

Explanation:

Here we have to find p(q(x))

q(x) =x -3

we will plug value of q(x) in x of p(x)

p(x) =2x2-4x

p(q(x)) = 2(x-3)2-4(x-3)

= 2(x2-6x+9)-4(x-3)

=2x2-12x+18 -4x+12

=2x2-16x+30