Alguém sabe fazer essa equação do segundo grau?

2x² - 3 .... 1 ......x+2 --------- – ---- = ------- .... 9 ........ 3 ..... 9 Se for, coloque tudo sobre denominador comum 9: 2x² - 3x ..... 3 .... x + 2 ----------- – ---- = -------- ....... 9 ....... 9 ....... 9 Cancela os denominadores e trabalha apenas com os numeradores: 2x² - 3x - 3 = x + 2 2x² - 3x - 3 - x - 2= 0 2x² - 4x - 5 = 0 x = {4 ±?(-4)² - 4.2.-5} / (2*2) x = 4 ±?(16 + 40) / 4 x = (4 ±?56) / 4 x = (4 ±2?14) / 4 x = (2 ±?14) / 2 x' = (2+?14)/2 x" = (2-?14)/2.

2x²-3-1-x-2=0 2x² - x - 6=0 x= - (-1) +- \/-1² - 4*2*(-1) / 2*2 x= 1 +-\/1+8 / 4 x=1 +- 3 / 4 x¹= 1 + 3/4 = 4/4 = 1 x² = 1-3/4=2/4=1/2 s=(1/2 ; 1).

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