Bob

]]>3x(x+2y) + 4y(3x+2y)]]>

Or take it over to Wolfram.

]]>Welcome to the forum.

You can simplify the problem by making the substitution

Then it becomes

I notice that x = -1 makes this expression zero, so by the factor theorem (x + 1) is a factor.

From there you can easily get the quadratic that goes with this and you'll find the formula will give another two factors.

Then you can go back to the m expression from there.

Bob

]]>tnx....]]>