xxchaoscarynexx
xxchaoscarynexx xxchaoscarynexx
  • 29-05-2017
  • Mathematics
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What are the solutions of 6x2 + 2x – 20 = 0? x = x =

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tramserran
tramserran tramserran
  • 24-08-2018

6x² + 2x - 20 = 0

3(2x² + x - 10) = 0

3[(2x² - 4x + 5x - 10)] = 0

3[2x(x - 2) + 5(x - 2)] = 0

3(2x + 5)(x - 2) = 0

3=0, 2x + 5 = 0, x - 2 = 0 (Note: 3=0 is false so disregard that equation)

x = [tex] \frac{-5}{2} [/tex] , x = 2

Answer: x = {[tex] \frac{-5}{2} [/tex], 2}



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