Question

x²-8x+7=0 cálculo e resultado​

Answer 1

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x² - 8x + 7 = 0

x = -b ± √b² - 4ac

2a

x = -(-8) ± √(-8)² - 4(1)(7)

2(1)

x = 8 ± √64 - 28

2

x = 8 ± √36

2

x = 8 ± 6

2

x = 4 ± 3

x = 7 // x = 1

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Att: MarcosPCV