diketahui f(x)=4x-5 dan g(x)=3^2+x hitunglah 3 f (-1)+2g(-2)
Matematika
widi276
Pertanyaan
diketahui f(x)=4x-5 dan g(x)=3^2+x hitunglah 3 f (-1)+2g(-2)
1 Jawaban
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1. Jawaban wulansari111000
f(x) = 4x - 5
f(-1) = 4(-1) - 5 = -4 -5 = -9
g(x) = 3^2 + x
g(-2) = 9 + (-2) = 7
3 f(-1) + 2 g(-2) = 3(-9) + 2(7)
= -27 + 14
= -13