Resposta :
Oi ✅
2x2-8x+8= 0
2 (x² - 4 + 4) = 0
2 (x² - 2x - 2x + 4) = 0
2 (x(x - 2) - 2 (x-2)) = 0
2 (x - 2) (x - 2) = 0
2 (x - 2)² = 0
x - 2 = 0
Oi ✅
2x2-8x+8= 0
2 (x² - 4 + 4) = 0
2 (x² - 2x - 2x + 4) = 0
2 (x(x - 2) - 2 (x-2)) = 0
2 (x - 2) (x - 2) = 0
2 (x - 2)² = 0
x - 2 = 0