Practice problem
What is the simplest form of 449x94\sqrt{49x^9}449x9?
4x4x4x^4 \sqrt x4x4x
28x4x28x^4 \sqrt x28x4x
7x3x7x^3 \sqrt x7x3x
494x49^4 \sqrt x494x
28x3x28x^3 \sqrt x28x3x
Type a concept, like “slope” or “photosynthesis”.