kam1035
kam1035 kam1035
  • 22-10-2020
  • Mathematics
contestada

Use the zero product property to find the solutions to the equation 2x2 + x – 1 = 2.

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hnori22003
hnori22003 hnori22003
  • 22-10-2020

[tex]2 {x}^{2} + x - 1 = 2 [/tex]

Subtract sides -2

[tex]2 {x}^{2} + x - 1 - 2 = 2 - 2 [/tex]

[tex]2 {x}^{2} + x - 3 = 0 [/tex]

[tex](x - 1)(2x + 3) = 0[/tex]

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[tex]x - 1 = 0[/tex]

[tex]x = 1[/tex]

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[tex]2x + 3 = 0[/tex]

[tex]x = - \frac{3}{2} \\ [/tex]

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Done♥️♥️♥️♥️♥️

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joojooiscool joojooiscool
  • 12-12-2020

Answer: I think its C on edge

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