Multiply the polynomials. (7x2 + 9x + 7)(9x – 4) a. 63x3 + 53x2 + 27x + 28 b. 63x3 + 53x2 + 27x – 28 c. 63x3 + 53x2 + 59x – 28 d. 63x3 + 81x2 + 27x – 28

(7x^2 + 9x + 7)(9x - 4)
= 63x^3 - 28x^2 + 81x^2 - 36x + 63x - 28
= 63x^3 + 53x^2 + 27x - 28
Therefor yes the correct answer is B :)

To solve these questions don't be afraid to just write each step out and add the like terms afterwards rather than feeling compelled to do it all in one go.

The operation is suck a c@ck? !