IRONMATHMAN
IRONMATHMAN IRONMATHMAN
  • 02-10-2016
  • Mathematics
contestada

What is x^2=8x-35? Solve equation.

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Panoyin
Panoyin Panoyin
  • 02-10-2016
               x² = 8x - 35
x² - 8x + 35 = 0
x = -(-8) ± √(-8)² - 4(1)(35)
                    2(1)
x = 8 ± √64 - 140
                2
x = 8 ± √-76
            2
x = -8 ± 4i√19
            2
x = -4 ± 2i√19
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