kittykitty
Member
Originally posted by smickied
To the best of my knowledge this is the rest of it confused:
If your left with .....xy-8x-8y+64
doesnt that reduce to... (xy-8x)-(8y+64)
I don't think that's how you solve the equation in the first place, but you can't just stick parenthesis around 8y+64. If you were to take (xy-8x)-(8y+64), and remove the parenthesis, you would have xy-8x-8y-64, not +64.
and factor out ...........2x(y-8)-8(y+8)
you can't take 2x out because there is no 2 in front of the xy. it would be: x(y-8)-8(y+8)
so then the rest of what you said would be wrong.
sorry I just had to point that out.