Algebra 2 ..

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Solve by completing the square.
1. 2x^2=5x+12
2. 5x^2+10x-7=0

  • Algebra 2 .. -

    x^2 - (5/2)x = 6

    x^2 - (5/2) x + 25/16 = 96/16 + 25/16

    (x-5/4)^2 = 121/16

    x-5/4 = +/- 11/4

    x = (1/4)( 5 +/- 11)

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