Bonjour vous pouvez m’aidez s’il vous plaît je n’y arrive pas.. 1)Développer et réduire les expressions:
•A = 5(2x – 12.
•D = (4t - 1)(4t + 1) - 2(t + 4).
•E = (x – 4)(3x + 1) – (4 - 5x)(2x + 3).
•-2(4 + 7x).
•2x(5x - 3) - 4(x + 1).
•3(5 - x)(5 + x).
•2(x - 5) + 3x + 7

2)Factoriser les expressions:
•B =64x2 - 9.
•C = (x + 1) - x(x + 1).
•3x2 - X
•5(x + 1) + (x + 1)2.
•8x² + 4x - 2x

Merci
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