diketahui f(x)=2x²+3x-2dan g(x)=3x+2 tentukan (f+g)(2)
Matematika
Bram83
Pertanyaan
diketahui f(x)=2x²+3x-2dan g(x)=3x+2 tentukan (f+g)(2)
1 Jawaban
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1. Jawaban Anonyme
f (x) = 2x² + 3x - 2
g (x) = 3x + 2
(f + g) (x)
= f (x) + g (x)
= (2x² + 3x - 2) + (3x + 2)
= 2x² + 3x + 3x - 2 + 2
= 2x² + 6x
(f + g) (2)
= 2 (2)² + 6 (2)
= 2 (4) + 12
= 8 + 12
= 20