Intergal exponent

~ We can not simplify expression that don't contain like terms.No x^2y is not a like term with xy^2 because whatever number the x is in the first one is being squared.And in the second one they are squaring the y.Xy and xyz are not the same because the second has a z to it.Also we can't combine them because they are not like terms.The power of m is 7 and the base of m is m. A negative base is when there is a negative sign in front of it.Let's say the base is x, so the x would be -x.Yes when we are finding a^2+b^2=c^2 ~