Question

Write the radical expression 8 over 7th root of x^15 in exponential form. The right answer is 8x^-15/7. Why?

Answer 1

"8 over 7th root of x^15" comes out as follows:\[\frac{ 8 }{ \sqrt[7]{x ^{15}} }\]

Answer 2

Focus on the denominator. Rewrite this radical in exponential notation. Here's the rule you need:\[\sqrt[a]{b^c}=b ^{c/a }or. b ^{\frac{ c }{ a }}\]

Answer 3

Thank you!