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2x2-8x+8=0 help... =(

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

x = 2