Practice problem
Simplify x3×x4×y−3×y−4.x^3\times x^4\times y^{-3}\times y^{-4}.x3×x4×y−3×y−4.
x7×y−7x^{7}\times y^{-7}x7×y−7
x12×y12x^{12}\times y^{12}x12×y12
x12×y−7x^{12}\times y^{-7}x12×y−7
x7×y7x^{7}\times y^{7}x7×y7
Type a concept, like “slope” or “photosynthesis”.
