Solving quadratic inequalities

Intros

Lessons

Solve:
i)
$x^2+2x-15=0$
ii)
$x^2+2x-15\leq0$
iii) $x^2+2x-15$ $>$ $0$

Examples

Lessons

Solve:
i)
$-2x^2+x+3=0$
ii)
$-2x^2+x+3 \ge 0$
iii) $-2x^2+x+3$ < $0$
Solve:
i)
$x^2-10x+25=0$
ii)
$x^2-10x+25$ > $0$
iii)
$x^2-10x+25$ < $0$
iv)
$x^2-10x+25 \leq 0$

No Javascript

It looks like you have javascript disabled.

You can still navigate around the site and check out our free content, but some functionality, such as sign up, will not work.

If you do have javascript enabled there may have been a loading error; try refreshing your browser.