Question

What is `(-x^3y^4)(-2x^2y^5)`?

Answer 1

`=2*x^5*y^9`

Explanation:

The easiest way (not necessarily the quickest) to solve this question is by expanding the equation then simplifying it:
`(-x^3y^4)(-2x^2y^5) = -1*x^3*y^4*-2*x^2*y^5`
By rearranging like terms next to each other:
`=-1*-2*x^3*x^2*y^4*y^5`
Now we can use the rule `a^m*a^n = a^(mn)`, we can simplify it down to:
`=2*x^5*y^9`