Question

Let f(x) = 3x + 2 and g(x) =7x + 6. Find f ·g and its domain.
A.

6x2 + 4x + 42; all real numbers

B.

21x2 +32x + 12; all real numbers except x = -6/7

C.

21x2 + 32x + 12; all real numbers

D.

6x2 + 4x + 42; all real numbers except x = -2/3

Answer 1

@iGreen

Answer 2

What do you think it is?

Answer 3

Multiply (3x + 2)(7x + 6)

Answer 4

how do i know the domian

Answer 5

Just figure this out first.

Answer 6

ok hold on

Answer 7

i got 21x2 + 32x + 12

Answer 8

@iGreen

Answer 9

@iGreen