Question 417272
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Hi
Factoring
  36w^3x^4-9wx^2
 9wx^2( 4w^2x^2 - 1)
|re reply: Above would be the proper answer to factor 'out common factors'

Below is 'fully factored' as may be expected as the proper answer at a later date:
 9wx^2(2wx-1)(2wx+1)