F(x)=x-2 G(x)=3x^+7x-5 (fog) (-2) (gof) (5)
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Pertanyaan
F(x)=x-2 G(x)=3x^+7x-5 (fog) (-2) (gof) (5)
1 Jawaban
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1. Jawaban elinisti
Fog(x) = (3x²+7x-5)-2= 3x²+7x-7
fog(2)= 3(2)²+7(2)-7=19
Gof(x)= 3(x-2)²+7(x-2)-7=3(x²-4x+4)+7x-14-7=3x²-12x+12+7x-21= 3x²-5x-9
gof(5)=3(5)²-5(5)-9 =75-25-9=41