Factor 18w^2z-2z

Math
18w2z-2z
Factor 2z out of 18w2z-2z.
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Factor 2z out of 18w2z.
2z(9w2)-2z
Factor 2z out of -2z.
2z(9w2)+2z(-1)
Factor 2z out of 2z(9w2)+2z(-1).
2z(9w2-1)
2z(9w2-1)
Rewrite 9w2 as (3w)2.
2z((3w)2-1)
Rewrite 1 as 12.
2z((3w)2-12)
Factor.
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Since both terms are perfect squares, factor using the difference of squares formula, a2-b2=(a+b)(a-b) where a=3w and b=1.
2z((3w+1)(3w-1))
Remove unnecessary parentheses.
2z(3w+1)(3w-1)
2z(3w+1)(3w-1)
Factor 18w^2z-2z

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