TIMOTHEEPOISSON92
Answered

19 A = 3 + (4 + x) B = 8 + (- 5 + x) 20 A = 7x + (- 3x + 2) A= B = 7+ (- 3x – 20) ► 21 21 A = – 5x +(7 + 5x) - B = 4 + (- 11x - 4) 2 x)​

Sagot :

LXDFO

Réponse:

A = 3+(4+x)

=3+4+x

=7+x

B=8+(-5+x)20

=8+20(-5+x)

=4(2+5(-5+x))

=4(2-25+5x)

=4(-23+5x)

C=7x+(-3x-20)

=7x-3x-20

=4x-20

=4(x-5)

D=-5x+(7+5x)

=-5x+7+5x

=7

E=4+(-11x-4)2x

=4+2x × (-11x-4)

=2(2+x × (-11x-4))

=2(2-11x²-4x)

bonne chance !