zaynahf
Let f(x) = x^2 + 1 and g(x) = 3x +5
What is (fg)(x)



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AravindG
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fg(x) is f(x)g(x)

AravindG
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use that property to get to result

zaynahf
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So use foil?

AravindG
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just multiply the functions :)

zaynahf
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I got 3x^3 + 3x + 5x^2 + 5

AravindG
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you are right :)

zaynahf
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Thank you!