Jika f(x-2)=4x²+4, maka nilai f(-5)=....
Matematika
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Pertanyaan
Jika f(x-2)=4x²+4, maka nilai f(-5)=....
1 Jawaban
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1. Jawaban arsetpopeye
f(x - 2) = 4x^2 + 4
Misal x - 2 = a => x = a + 2
f(x - 2) = 4x^2 + 4
f(a) = 4(a + 2)^2 + 4
f(-5) = 4(-5 + 2)^2 + 4 = 4(-3)^2 + 4 = 4(9) + 4 = 36 + 4 = 40