Question

If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to (t*s)(x) ?

Answer 1

Hello,

(t*s)(x)=t(x)*s(x)=(4x²-x+3)*(x-7)

Answer D

Answer 2

The expression (t*s)(x) may also be written as t(x)*s(x) which means that the functions are just multiply to each other. From the given,
                           t(x)*s(x) = (4x² - x + 3)(x - 7)
Thus, the answer for this item is letter D.