asked 62.4k views
2 votes
On considère l’expression A = ( 2x – 1 )² + ( 2x – 1 ) ( x + 4 ).
1. Développer et réduire A.

2 Answers

7 votes
A=(2x-1)(2)+(2x-1)(x+4)
A=2x^2+11x-6
answered
User Jacob Stamm
by
8.4k points
5 votes

Answer:

A = 6x^2+3x-3

Explanation:

expand the first term:
4x^2-4x+1+\left(2x-1\right)\left(x+4\right)

multiply the second terms:
4x^2-4x+1+2x^2+7x-4

simplify by combining like terms:
6x^2+3x-3

oui, je parle un peu de francais. <<Développer>> = expand et <<réduire>> = simplify.

answered
User Tewathia
by
7.8k points
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