factoriser, si possible 49x²+28x+4 x-7x² 4x²-40x+100 64-4x²
Mathématiques
sanogo
Question
factoriser, si possible
49x²+28x+4
x-7x²
4x²-40x+100
64-4x²
49x²+28x+4
x-7x²
4x²-40x+100
64-4x²
1 Réponse
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1. Réponse slyz007
49x²+28x+4=(7x+2)²
x-7x²=x(1-7x)
4x²-40x+100=(2x-10)²
64-4x²=(8+2x)(8-2x)