Find the root of the equation x^{2} -3x-10=0
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harman2371:
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x^2-3x-10=0
x^2+2x-5x-10=0
x(x+2) -5(x+2) =0
(x+2) (x-5) =0
(x+2) =0 or (x-5) =0
x=-2 or x=5
x^2+2x-5x-10=0
x(x+2) -5(x+2) =0
(x+2) (x-5) =0
(x+2) =0 or (x-5) =0
x=-2 or x=5
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