Question

alguém me ajuda pfvr

x2-x×2=0 ​

Answer 1

Resposta:

x² -2x = 0

x= -(-2)±√(-2)²-4(1)(0)

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2 • 1

x = 2 ± √4

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2

x = 2 ± 2

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2

x' = 2+2/2 = 4/2 = 2

x" = 2-2/2 = 0/2 = 0

S = { 0, 2}