math
posted by ethen .
10xy15x^2= 5xy(2x3)factor out GCF

math 
Reiny
I can't decide if you want to factor the equation 10xy15x^2= 5xy(2x3) or if you
say the GCF of 10xy15x^2 is 5xy(2x3)
if it is the latter than the GCF of
10xy  15x^2 is either 5x or (2y  5x)
depending on the values of x and y.
if you want to factor the equation, then ...
10xy15x^2  5xy(2x3) = 0
10xy15x^2  10x^2y + 15xy = 0
25xy  10x^2y = 0
5xy(5  2x) = 0
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