*Fan & medal* Please explain how I solve this. I have no idea how to do this, when I tried I ended up with -30x^2 - 6.
Let f(x) = -5x + 3 and g(x) = 6x - 2. Find f * g and its domain.
A.-30x^2 + 28x - 6; all real numbers except x = 1/3
B. -15x^2 - 8x - 12; all real numbers except x = 3/5
C. -30x^2 + 28x - 6; all real numbers
D. -15x^2 - 8x - 12; all real numbers

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probs a good idea to multiply the functions

That's what I did, and I got -30x^2 - 6

\[f*g=(-5x+3)(6x-2)\]
\[f*g=-5x(6x-2)+3(6x-2)\]
\[f*g=-30x^2+10x+18x-6\]
\[f*g=-30x^2+28x-6\]

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