Question

(x)^3(-x^3y)^2
please help​

Answer 1

`\large\boxed{(x^3)(-x^3y)^2=x^9y^2}`

Explanation:

`(x^3)(-x^3y)^2\qquad\text{use}\ (ab)^n=a^nb^n\\\\=(x^3)(-x^3)^2(y^2)\qquad\text{use}\ (a^n)^m=a^(nm)\\\\=(x^3)(x^6)(y^2)\qquad\text{use}\ a^n\cdot a^m=a^(n+m)\\\\=x^(3+6)y^2\\\\=x^9y^2`