Largest Expression

Which of these five algebraic expressions is largest, given $x$ is between 0 and 1?
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Given that $x$ is positive and less than $1$, list the following five expressions from smallest to largest:

$x^2 + x$         $x^2$         $x^3$         $x^3 + x^2$          $x^4$
 

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.