Practice problem
Simplify 9x2y4−xy2\sqrt{9x^2y^4} - xy^29x2y4−xy2 if x,y>0x,y>0x,y>0.
2xy22xy^22xy2
9x2y4−xy2\sqrt{9x^2y^4} - xy^29x2y4−xy2
8xy28xy^28xy2
8x2y48x^2y^48x2y4
Type a concept, like “slope” or “photosynthesis”.
