Respostas

2013-11-12T11:58:27-02:00
A)
3x^2+2.3x.2+2^2
3x^2+12x+4

b)
3x^2-2.3x.-1+(-1)^2
3x^2+6x+1

c)
4x^2+2.4x.5y+5y^2
4x^2+40xy+5y^2

d)
x^2-2.x.-7y+(-7y)^2
x^2+14xy-7y^2

e)
2x^2+2.2x.5y+5y^2
2x^2+20xy+5y^2

f)
7x^2+2.7x.9y+9y^2
7x^2+126xy+9y^2

g)
10x^2-2.10x.-11+(-11)^2
10x^2+220x+121

h)
x^2+2.x.20y+20y^2
x^2+40xy+20y^2

i)
8x^2+2.8x.2+2^2
8x^2+32x+4

j)
13x^2-2.13x-10y+10y^2
13x^2+260xy+10y^2



2013-11-12T12:03:31-02:00