Dik g(x) = x²+x+8 dan (f-g)(x)=2x-3 tentukan

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A. F(x)
B. F(-2) dan g(-2)
C. (F+g) (-2) dan (fxg) (-2)

Dik g(x) = x²+x+8 dan (f-g)(x)=2x-3 tentukan

(f-g)(x)=f(x)-g(x)=2x-3
g(x) = {x}^{2} + x + 8
f(x)-g(x)+g(x)=(2x-3)+(x²+x+8) =x²+3x+5 =f(x)

A. f(x) = x²+3x+5

B. f(-2) = (-2)²+3(-2)+5 = 4-6+5 = 3
g(-2) = (-2)²+(-2)+8 = 4-2+8 = 6

C.