jika fungsi f(x) = (5x2-1) (3-4x), nilai f(-1) adalah
Matematika
udah3
Pertanyaan
jika fungsi f(x) = (5x2-1) (3-4x), nilai f(-1) adalah
2 Jawaban
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1. Jawaban deeamandaa
f(-1) = (5(-1)^2 - 1) (3-4(-1))
= (5(1) - 1) (3+4)
= (4)(7)
= 28 -
2. Jawaban Lordrepztor
f(-1) = (5x2-1) (3-(4x-1))
= 9 x (3 + 4)
= 9 x 7
= 63