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Is it possible to factor 9x^2-1=0 ?

Daniel574

by Daniel574 at January 29, 2011

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if you use the quadratic function

wlim 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

Montanna002 Montanna002 January 29, 2011

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