Bonjour, calculer f(x) pour x =0;7;4xau carre merci f(x):=4*(x-1)au carre -9
Mathématiques
Naruto7695
Question
Bonjour, calculer f(x) pour x =0;7;4xau carre merci f(x):=4*(x-1)au carre -9
1 Réponse
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1. Réponse Aftershock
f(x) = 4(x-1)²-9
f(0) = 4(0-1)²-9
f(0) = 4×(-1)²-9
f(0) = 4×1-9
f(0) = 4-9
f() = -5
f(7) = 4(7-1)²-9
f(7) = 4×6²-9
f(7) = 4×36-9
f(7) = 144-9
f(7) = 135
f(4x²) = 4(4x²-1)²-9
f(4x²) = 4(16x^(4)-8x²+1)-9
f(4x²) = 64x^(4)-32x²+4-9
f(4x²) = 64x^(4)-32x²-5