Respostas

2013-12-04T14:06:08-02:00
 (x³+y)² = x elevado a 6 + 2. x³.y + y²

a)(x³-3y²)(x³-3y²)=
b)(2f-3g)²=
c)(x-3)(x+3)-x(x-3y)=
d)(5a+3)²+(5a-3)²-2(a+5)=
e)(2x-3)²+(x-5)(x+5)-(x+4)²=
pfv
vc sabe?
2013-12-04T14:49:38-02:00
 (x³+y)² = x elvd 6 + 2. x³.y + y²

a)(x³-3y²)(x³-3y²)=
b)(2f-3g)²=
c)(x-3)(x+3)-x(x-3y)=
d)(5a+3)²+(5a-3)²-2(a+5)=
e)(2x-3)²+(x-5)(x+5)-(x+4)²=
pfv
vc sabe?