Factoriser:
a. 7x² – 3x = x * 7x - x * 3 = x (7x - 3)
b. -x³ + 5x² = x² * (-x) + x² * 5 = x² (-x + 5)
il faut passer de ka + kb à k (a+b)
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Factoriser:
a. 7x² – 3x = x * 7x - x * 3 = x (7x - 3)
b. -x³ + 5x² = x² * (-x) + x² * 5 = x² (-x + 5)
il faut passer de ka + kb à k (a+b)