Hi I have a question about algebra for example 8t^3 - 27 how to convert to this model (2t - 3)(4t^2 + 6t + 9)
Last edited by mr fantastic; Apr 22nd 2010 at 03:57 PM. Reason: Re-titled post.
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Originally Posted by ehsangha Hi I have a question about algebra for example 8t^3 - 27 how to convert to this model (2t - 3)(4t^2 + 6t + 9) It is the difference of two cubes formula $\displaystyle (a\pm b)^3 = (a \pm b)(a^2 \mp ab + b^2)$ In your case: $\displaystyle 8t^3-27 = (2t)^3-3^3$
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