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2 April, 07:23

What is the solution of the equation (x - 5) 2 + 3 (x - 5) + 9 = 0? Use u substitution and the quadratic formula to solve. x = 2 x = 8

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  1. 2 April, 07:51
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    (X-5) 2+3 (X-5) + 9 = 0

    let expand the equation

    (x) x2 - (5) x2 + 3 (x) - 3 (5) + 9 = 0

    2x-10+3x-15+9=0

    collect like terms

    2x+3x-10-15+9 = 0

    5x-10-6 = 0

    5x-16=0

    5x=0+16

    5x=16

    divide both side by 5 we have

    x=16/5
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