Question

encontre a s raizes da equaçao x²-3×+2=​

Answer 1

x² - 3x + 2 = 0

a = 1

b = - 3

c = 2

∆ = b² - 4 . a . c

∆ = (-3)² - 4 . 1 . 2

∆ = 9 - 8

∆ = 1

x = - b ± √∆

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2a

x' = - (-3) - 1

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2 . 1

x' = 3 - 1

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2

x' = 2

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2

x' = 1

x" = - (-3) + 1

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2 . 1

x" = 3 + 1

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2

x" = 4

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2

x" = 2

S = {1 , 2}

Answer 2

espero ter ajudado, bjo