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18-03-2016
Mathematics

contestada

Solve for x.

x2 + 9x = 0

Respuesta :

18-03-2016

You can use sum-product but the easiest way is to isolate x like this: x^2 + 9x (-9x) = 0 (-9x) x^2 = -9x x^2 (/x) = -9x(/x) x=-9

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