I'm studying for finals and can some tell me what im doing wrong? or is the given answer an error?
http://img9.imageshack.us/img9/5160/sdsd…
http://img9.imageshack.us/img9/5160/sdsd…
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y^14 is the square root of y^28.
your answer is correct, you just have to go one more step.
-3(x^9)(y^14)*sqrt(2y)
-3(x^9)*sqrt(y^28)*sqrt(2y)
-3(x^9)*sqrt(2y^29)
your answer is correct, you just have to go one more step.
-3(x^9)(y^14)*sqrt(2y)
-3(x^9)*sqrt(y^28)*sqrt(2y)
-3(x^9)*sqrt(2y^29)