Brightstorm Q & A : Is it possible to factor 9x^2-1=0 ?

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answer #1

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lqez now

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if you use the quadratic function

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wlim January 29, 2011

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Difference of squares (3x -1) (3x +1) so 3x - 1 = 0 3x = 1 x = 1/3 OR 3x + 1 = 0 3x = -1 x = -1/3 so the solutions are x = 1/3 or -1/3

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Montanna002 January 29, 2011

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