how do i solve 3√8x^2y^3 - 5x√32y^3

Question

or

4√98y^11 - 9√128y^11

Answer 1

solve? There is no equal sign in the phrase.

Answer 2

yea im supposed to subtract them. all the directions say is to subtract.

Answer 3

Ok, I can't decide what you wanted under the sqrt sign. I think you meant this:
3sqrt(8x^2y^3) - 5xsqrt(32y^3)

so work on the sqrt sign first
3sqrt(4*2x^2y^3)- 5xsqrt(16*2y^3)
6sqrt( 2x^2y^3) - 20xsqrt( 2y^3)
6xsqrt( 2 y^3) - 20xsqrt( 2y^3)
or
sqrt(2y^3)(6x-20x)
-14x sqrt(2y^3)