How do you factor by finding the GCF? #7x^3 - 28x^3#

Question

I forgot the steps to factoring this way.

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Answer 1 · 2017-03-18T21:33:25

#7x^3#

Assuming you mean the greatest common factor of #7x^3 and 28x^3#

Greatest minus the lesser type approach

#28x^3-7x^3 = 21x^3#

#21x^3-7x^3=14x^3#

#14x^3-7x^2=7x^3#

#7x^3-7x^3=0#

Thus GCF is #7x^3#