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28 September, 19:45

What are the solutions to the system of equations?

y=2x2-5x-7

y=2x+2

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Answers (1)
  1. 28 September, 23:37
    0
    Step-by-step explanation:

    y=2x²-5x-7

    y=2x+2

    2x²-5x-7=2x+2

    2x²-7x-9=0

    2x²-9x+2x-9=0

    x (2x-9) + 1 (2x-9) = 0

    (2 x-9) (x+1) = 0

    x=9/2,-1

    y=11,0

    solutions are (9/2,11), (-1,0)
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