How do I factor (x^3 + 8) ? Any help would be greatly appreciated! Thanks in advance!
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Originally Posted by s3a How do I factor (x^3 + 8) ? Any help would be greatly appreciated! Thanks in advance! Notice that , a sum of two cubes. So it can be factorised using the sum of two cubes rule... . Therefore .
Let Since , by factor theorem, is a factor. So Comparing coeff. of , Comparing constants, Comparing coeff. of , Note: you can find the quadratic factor by long division also. Thus
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