Question

Resolva a equação do segundo grau...
2x²-5x+6=

Answer 1

Resposta ↓

Conjunto solução ⇒ s = {3/2, 1}

Explicação passo-a-passo:

Coeficientes :

a = 2

b = - 5

c = 6

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Δ = b² - 4.a.c

Δ = (-5)² - 4.2.6

Δ = 25 - 24

Δ = 1

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$x = \cfrac{-b\pm\sqrt{\Delta} }{2.a} \\\\\\x = \cfrac{-(-5)\pm\sqrt{1} }{2.2} \\\\\\x = \cfrac{5 \pm 1}{4} \\\\\\x' = \cfrac{5+1}{4} \\\\\\x' = \cfrac{6}{4}\\\\\\x' = \cfrac{3}{2} \\\\\\x' = 1,5\\\\\\x" = \cfrac{5-1}{4} \\\\\\x" = \cfrac{4}{4} \\\\\\x" = 1$