Question

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (c*d)(x)?

Answer 1

C(x)=4x-2       and d(x)=$x^{2} +5x$
(c*d)(x)
(4x-2)($x^{2} +5x)$
Open the brackets and multiply the terms in the order shown below;
4x($x^{2} +5x)$-2($x^{2} +5x)$
=4$x^{3} +20 x^{2} -2 x^{2} -10x$
=4$x^{3} +18 x^{2} -10x$

Answer 2

Answer:

The answer is A.

Step-by-step explanation: