Niveau 5eme: factoriser
U=4 (x+2)+2x
v=3 (x+1)+3 (1-x)
W=x (x+1)+2(x+1)
X=4x (x-2)+4x (2-x)
Y=5 (m+p)+5 (m-p)
Z=2x (xau carré+x+1)+4 (x au carré+x+1)
Pouvez vous m'aider a faire ces calcules merci
U=4 (x+2)+2x
v=3 (x+1)+3 (1-x)
W=x (x+1)+2(x+1)
X=4x (x-2)+4x (2-x)
Y=5 (m+p)+5 (m-p)
Z=2x (xau carré+x+1)+4 (x au carré+x+1)
Pouvez vous m'aider a faire ces calcules merci
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U=4(x+2)+2x
= 4*x+4*2+2x
= 4x+8+2x
= 6x+8
V= 3(x+1)+3(1-x)
= 3*x+3*1+3*1-3*x
= 3x+3+3-3x
= 6
W= x(x+1)+2(x+1)
= x*x+x*1+2*x+2*1
= x²+1x+2x+2
=x²+3x+2
X= 4x(x-2)+4x(2-x)
= 4x*x+4x*(-2)+4x*2+4x*(-x)
= 4x²-8x+8x-4x²
= 0
Y=5(m+p)+5(m-p)
= 5*m+5*p+5*m+5*(-p)
= 5m+5p+5m-5p
= 10m
Z =2x(x²+x+1)+4(x²+x+1)
= 2x*x²+2x*x+2x*1+4*x²+4*x+4*1
=2x^3+2x²+2x+4x²+4x+4
= 2x^3+6x²+6x+4