## Beautiful_Lier96 2 years ago how to simplify a radical expression. ex: Simplify the prob 3Sqrrt(-243x^3y^10) i already know nSqrrt(a) * nSqrrt(B) = nSqrrt(AB)

1. satellite73

ok so $$\sqrt[3]{x^3}=x$$ for a start

2. satellite73

and since $$243=3^5$$ we have $$\sqrt[3]{3^5}=3\sqrt[3]{3^2}$$

3. satellite73

finally $$\sqrt[3]{y^{10}}=3\sqrt[3]{y}$$