find the product of (x^2y^2-5)^2
remember(x^m)(x^n)=x^(m+n)(x^2y^2-5)^2=(x^2y^2-5)(x^2y^2-5)=x^4y^4-5x^2y^2-5x^2y^2+25=\(x^4y^4-10x^2y^2+25\)
