# Math Help - x cubed minus x squared is less than or equal to 0

1. ## x cubed minus x squared is less than or equal to 0

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i'm baffled, yet again. do i just add x squared to both sides? then i get x cubed is less than or equal to x squared, and yet again, i'm stumped.

help?

2. Originally Posted by jjkelder
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i'm baffled, yet again. do i just add x squared to both sides? then i get x cubed is less than or equal to x squared, and yet again, i'm stumped.

help?

$x^3-x^2\leq 0$

Factorise ... $x^2(x-1) \leq 0$ and you can see when this is <=0

3. Originally Posted by a tutor
$x^3-x^2\leq 0$

Factorise ... $x^2(x-1) \leq 0$ and you can see when this is <=0
Draw a graph of $y = x^3 - x^2 = x^2(x-1)$. You want the values of x for which the graph is on or under the x-axis.