Elifnuhrans
Answered

(gof)(x) = 3x-8
g(x) = 2x-7
(fog)(3) =?​

Sagot :

Fog(3)=2*3-7=7-7=-1

(2x-7)o(F(x))=2F(x)-7=3x-8

2F(x)-3x=-1

Fog(3)

G(3)=3*2-7=-1

2F(-1)-7=3*(-1)-8

2F(-1)-7=(-3)-8

2F(-1)=-11+7

2F(-1)=-4

F(-1)=-2

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