Question

Me ajudem dependência ??

Answer 1

1-a) x²+2.3.x+3²= x²+6x+9
b)a²+2ab+b²
c)5y²-2.5y.1+(-1)²= 5y²-10y+1
d)x⁴-12x²+36
e)4x²+28x+49
f)81x²-9x+9x-1= 81x²-1
g)a⁴-2a²xy+x²y²
h)9x²-1/2xy+1/36y²
i)4x4+12x³y+9x²y²

2)x²-2xy+y²-(x²+2xy+y²)
x²-2xy+y²-x²-2xy-y²= -4xy

3) 3ab-9+a²b²-3ab= a²b²-9