Website Statistics Factoriser les expressions suivantes L7x152x7x1

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hirondelle52

Bonjour;

=(7x-1)(5+2x)-(7x-1)²​

=(7x-1) ( 5+2x-7x+1)

= (7x-1) ( -5x +6)

ophelielacombe09

L = (7x - 1)(5 + 2x) - (7x - 1)²

​L = (7x - 1)(5 + 2x) - (7x - 1)(7x - 1)​

L = (7x - 1)[(5 + 2x) - (7x - 1)]

L = (7x - 1)(5 + 2x - 7x + 1)

L = (7x - 1)(6 - 5x)

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