Question

f(x)=−5xf(x)=−5x
g(x)=8x2−5x−9g(x)=8x2−5x−9
Find (f⋅g)(x)(f·g)(x).
Select one:
a. −40x4+25x3+45x2−40x4+25x3+45x2
b. −40x2+25x+45x−40x2+25x+45x
c. −40x3−5x−9−40x3−5x−9
d. −40x3+25x2+45x

Answer 1

the answer to this question is A. or D.