Answer
GCF=7x
Work Step by Step
-21$x^{3}$ ,14$x^{}$
-21$x^{3}$= -1*3*7*x*x*x
14$x^{}$= 1*2*7
GCF = 7x
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.