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18-07-2016
Mathematics

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Let f(x) = -3x - 4 and g(x) = 2x - 6. find (f0g)(-7)

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thatonefriend thatonefriend

18-07-2016

f(x)= -2x+3

g(x)= 4x-6.

Instead of x in f(x), we put g(x).

fog=-2*g(x)+3

-2(4x-6)+3
-8x+12+3
-8x+15

fog(4)=-32+15=-17

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