SOLUTION: Find [g*h](x) and [h*g](x)
12. g(x)=-2x
H(x)= x^2+3x+2
So this is what I've done so far but I need help solving for the other.
(G*h)=-2(x^2+3x+2)
-2x^
Algebra.Com
Question 188982This question is from textbook algebra2
: Find [g*h](x) and [h*g](x)
12. g(x)=-2x
H(x)= x^2+3x+2
So this is what I've done so far but I need help solving for the other.
(G*h)=-2(x^2+3x+2)
-2x^2-6x-4
(H*g)
This question is from textbook algebra2
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
You have the right idea. For  = g\left(h(x)\right))
you substituted where there was an x in .
For  = h\left(g(x)\right))
you simply substitute )
where there was an x in )
.
 = x^2 + 3x + 2)
\ =\ h\left(g(x)\right)\ =\ (-2x)^2 + 3(-2x) + 2\ =\ 4x^2 - 6x + 2)
John
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