Question

(x-2)^2+(x+1)^2=5 alguém me ajudaaaa

Answer 1

(x-2)² = x²-4x+4
(x+1)² = x²+2x+1

x²-4x+4+x²+2x+1 = 5
2x²-2x+5 = 5
2x²-2x+5-5 = 0
2x²-2x = 0
2x*(x-1) = 0
2x = 0 --> x = 0/2 --> x = 0
x-1 = 0 --> x = 1