-125x^3y-75xy^2+100x^3y^3 factor help

i have used a number tree to get

3 answers

25 xy is a factor of all terms.


-125x^3y -75xy^2 +100x^3y^3
= 25xy*(-5x^2 -3y +4x^2y^2)
cos2A=?
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