Question

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Equação de 2⁰ grau

Answer 1

I) x² - 7 = x + 5

x² - 7 - x - 5 = 0

x² - x - 12 = 0

II) x² + 11x = 16x - 6

x² + 11x - 16x + 6 = 0

x² - 5x + 6 = 0

III) x² - 7x = 6 - 2x

x² - 7x - 6 + 2x = 0

x² - 5x - 6 = 0

IV) x² - 1 = x + 11

x² - 1 - x - 11 = 0

x² - x - 12 = 0

V) -11x² + 5 = -8x

-11x² + 8x + 5 = 0

VI) _

VII) 2x² - 5x = -2

2x² - 5x + 2 = 0

VIII) x² + 6x = 2x + 3

x² + 6x - 2x - 3 = 0

x² + 4x - 3 = 0

IX) _

X) -5x²= 30x + 40

-5x² - 30x - 40 = 0