factoriser: a) 15x²-10x c) x²-12x+36 b) 25x²-36 d) 0.04+2x+25x²
Mathématiques
frogy
Question
factoriser:
a) 15x²-10x c) x²-12x+36
b) 25x²-36 d) 0.04+2x+25x²
a) 15x²-10x c) x²-12x+36
b) 25x²-36 d) 0.04+2x+25x²
1 Réponse
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1. Réponse Cxrly
a) 15x²-10x = 5x(3x-2)
b) 25x²-36 = 5(5x²-7)-1
c) x²-12x+36 = x(x-6)+36
d) 0.04+2x+25x² = x(25x+2)+0.04