# Math

posted by
**Erin**
.

When you have

4xy^3 * 2x^2y * 5xy^2

Would you add the first number and then add the powers?

11x^4y^6 ???

Thank you

multiply, multiply, multiply

4*2*5 * x^{1+2+1} y^{3+1+2}

You got the powers right, but the coefficent is 40