How do you factor the expression #18x²-2#?

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How do you factor the expression #18x²-2#?

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Answer 1 · 2015-12-24T10:29:59

#2(3x - 1)(3x+1)#

Explanation:

First take out the common factor, giving #2(9x^2 - 1)#
Then recognize this as the difference of two squares and use the fact that #(m^2 - n^2)# factors as# (m-n)(m+n)# to get
#2(3x - 1)(3x+1)#

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How do you factor the expression #18x²-2#?

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