How do you factor #14x^3 - 21x#?

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Answer 1 · 2018-07-22T08:39:52

#7x(\sqrt2x+\sqrt3)(\sqrt2x-\sqrt3)#

#14x^3-21x#

#=7x(2x^2-3)#

#=7x((\sqrt2x)^2-(\sqrt3)^2)#

#=7x(\sqrt2x+\sqrt3)(\sqrt2x-\sqrt3)#

Answer 2 · 2018-07-22T08:41:10

# 7x (2x^2 - 3)#

#14x^3# & #21x : #The GCF (Greatest Common Factor) is #7x#

Factor out the greatest common factor:
#14x^3 - 21x = 7x (2x^2 - 3)#