Bonsoir,
4 = 2²
IR:
a² -b² = (a-b) (a+b)
(-4x-7 -2) ( -4x-7 +2)
= (-4x -9) ( -4x -5)
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Bonsoir,
4 = 2²
IR:
a² -b² = (a-b) (a+b)
(-4x-7 -2) ( -4x-7 +2)
= (-4x -9) ( -4x -5)