Simplify.

1.(-15xy^4)(-1/3xy3)

Is the answer for number 1 = -15x^6y^1?Thanks

Express the area of each figure as a monomial.
1.A circle with the radius of 5x^3.

how would I solve this problem?

2 answers

I don't get anything close to that on 1.

-15/-3 * x*x * y^4 *y1

area= PI radius^2=PI(5x^3)^2=25 PI x^6
1. No, that is not the answer.
If you are multiplying the terms in parentheses, you add exponents.
For the constant coefficient,
(-15) x (-1/3) = 5

1. Substitute 5x^3 for r in
Area = pi*r^2