Réponses

2013-05-03T22:26:03+02:00

A=x²-x+4x²-8x

A=5x²-9x

 

B=a(3+2b)+b(4-3a)+2(5a+3b)

B=3a+2ab+4b-3ab+10a+6b

B=13a-ab+10b

2013-05-03T22:58:25+02:00

A=x(x-1)+4(x²-2x)

x*x+x*(-1)+4*x²+4*(-2x)

x²-x+4x²-8x

5x²-9x

 

B=a(3+2b)+b(4-3a)+2(5a+3b)

a*3+a*2b+b*4+b*(-3a)+2*5a+2*3b

3a+2ab+4b-3ab+10a+6b

-ab+13a+10b