Bonsoir,
Factoriser:
(-7x + 7)² + (-7x + 7) (7x+ 7)= (-7x+7)(-7x+7+7x+7)= (-7x+7)(14)= -14(7x-7)= -98(x-1)
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Bonsoir,
Factoriser:
(-7x + 7)² + (-7x + 7) (7x+ 7)= (-7x+7)(-7x+7+7x+7)= (-7x+7)(14)= -14(7x-7)= -98(x-1)