Question

(y-4)^2 + 10y= 16 resolva a equação

Answer 1

y²+2.y.(-4)+(-4)²+10y=16
y²-8y+16+10y=16
y²+2y+16-16=0
y²+2y=0
y(y+2)=0
y=0
y+2=0
y=-2
resp: y=0 ; y=-2