SOLUTION: I need help with the difference of cubes. 125x^3-27
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Question 89642
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I need help with the difference of cubes.
125x^3-27
Answer by
scott8148(6628)
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a^3-b^3 factors into (a-b)(a^2+ab+b^2) ... a^3+b^3 factors into (a+b)(a^2-ab+b^2)
125x^3-27 ... (5x)^3-3^3 ... using template gives (5x-3)((5x)^2+5x*3+3^2) ... (5x-3)(25x^2+15x+9)
