# Math Help - simple im sure

1. ## simple im sure

i have u = x^(a+1) and need to find this in terms of x.
does it involve square rooting this in terms of a +1?
cheers

2. Originally Posted by ben.mahoney@tesco.net
i have u = x^(a+1) and need to find this in terms of x.
does it involve square rooting this in terms of a +1?
cheers
For $a\neq-1,$ raise both sides to the power of $\frac1{a+1}.$ That is, do $u^{1/(a+1)}=\left(x^{a+1}\right)^{1/(a+1)}.$

This would not be a square root unless $a$ happens to equal 1.