Solving quadratic inequalities

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

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