Question

raiz da equação x⁴-17x²+16=0

Answer 1

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Ola MaariaLuiisa

x⁴ - 17x² + 16 = 0

y = x²

y² - 17y + 16 = 0

delta
d² = 17² - 4*16 = 289 - 64 = 225 
d = 15

y1 = (17 + 15)/2 = 32/2 = 16
y2 = (17 - 15)/2 = 2/2 = 1

x1 = -4
x2 = 4
x3 = -1
x4 = 1

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