A) Développe puis réduis chaque expression:
A=(x+5)x2
B=8(-4-t)
C=6(4x-1)(3x+5)
D=(5v+2)(2l-3)
b) Factorise chaque expression:
E=25y+15
F=3/2 - 1/2d
A=(x+5)x2
B=8(-4-t)
C=6(4x-1)(3x+5)
D=(5v+2)(2l-3)
b) Factorise chaque expression:
E=25y+15
F=3/2 - 1/2d
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B=-32-8t
C=72x²+120x-18x-30
=72x²+102x-30
D=10vl-15v+4l-6
E=5(5y+3)
F=1/2(3-d)