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Emma
Emma asked in Science & MathematicsMathematics · 6 months ago

What is X in this equation?

450,000 = -425x^2 + 45,500 x - 650,000

2 Answers

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  • billrussell42
    Lv 7
    6 months ago
    Favorite Answer

    450,000 = –425x² + 45,500 x – 650,000

    425x² – 45,500 x + 450,000 + 650,000 = 0

    425x² – 45500 x + 1100000 = 0

    17x² – 1820 x + 44000 = 0

    quadratic equation:

    to solve ax² + bx + c = 0

    x = [–b ± √(b²–4ac)] / 2a

    x = [1820 ± √(1820²–4•17•44000)] / 34

    x = [1820 ± √(3312400–2992000)] / 34

    x = [1820 ± 566.0389] / 34

    x = 70.17761,  36.88121

    but check the math...

  • Krishnamurthy
    Lv 7
    6 months ago

    450,000 = -425 x^2 + 45,500 x - 650,000

    x = 910/17 - (30 sqrt(89))/17

    x = 910/17 + (30 sqrt(89))/17

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