Practice problem
What would you multiply the expression xy2−tw−k \dfrac{xy^2-\sqrt{t}}{w-\sqrt{k}}\;w−kxy2−t by to rationalize the denominator?
k+w\sqrt{k}+wk+w
xy2+txy^2+\sqrt{t}xy2+t
w−kw-\sqrt{k}w−k
xy2txy^2\sqrt{t}xy2t
Type a concept, like “slope” or “photosynthesis”.