Question 298537
-55x+30=50x2
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Rearrange:
50x^2 + 55x - 30 = 0
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Divide thru by 5 to get:
10x^2 + 11x - 6 = 0
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a = 10, b = 11, c = -6
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Formula: x = [-b +- sqrt(b^2-4ac)]/(2a)
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x = [-11 +- sqrt(121 - 4*10*-6)]/(20)
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x = [-11 +- sqrt(361)]/(20)
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x = [-11 + 19]/(20) or x = [-11 - 19]/(20)
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x = (8/20) or x = -3/2
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x = 2/5 or x = -3/2
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Cheers,
Stan H.