Factor 64x^3-27
Problem
Solution
Identify the expression as a difference of two cubes, which follows the form
a3−b3 Determine the values of
a andb by taking the cube root of each term.Calculate
a=√(3,64*x3)=4*x Calculate
b=√(3,27)=3 Apply the formula for the difference of cubes:
a3−b3=(a−b)*(a2+a*b+b2) Substitute the values of
a andb into the formula.Simplify the terms inside the second set of parentheses:
(4*x)2=16*x2 (4*x)*(3)=12*x and3=9
Final Answer
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