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19 September, 22:59

Find the roots of the quadratic equation 3x2 - 12x - 60 = 0

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  1. 19 September, 23:03
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    3x²-12x-60=0

    simplify by dividing by 3: x²-4x-20=0

    cannot be factored, use the quadratic formula: √ (b²-4ac) = √[ (-4) ²-4*1 * (-20) ]=√96=4√6

    x=2+2√2 or x=2-2√2
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