Bonjour
Factoriser 5(1 +2x) - (x + 1)(1 + 2x)
= (1 + 2x)(5 - (x + 1))
= (1 + 2x)(5 - x - 1)
= (1 + 2x)(-x + 4)
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Bonjour
Factoriser 5(1 +2x) - (x + 1)(1 + 2x)
= (1 + 2x)(5 - (x + 1))
= (1 + 2x)(5 - x - 1)
= (1 + 2x)(-x + 4)