Thursday

July 24, 2014

July 24, 2014

Posted by **Liz** on Thursday, August 23, 2012 at 2:43am.

- Algebra -
**Steve**, Thursday, August 23, 2012 at 4:27amone is an inequality, the other is not. :-)

An equation will have 0,1, or 2 roots.

for example,

(x-3)(x+4) = 0

is true when x=3 or x = -4.

(x-3)(x+4) < 0

is the**interval**from -4 to 3, where y < 0.

Just as the equation, the inequality may have an interval, or a point for a solution, or no solution at all.

x^2 <= 0 has only x=0 for a solution.

x^2 > 0 will have two intervals for a solution: (-oo,0) U (0,oo)

x^2 < 0 has no real solutions at all

**Related Questions**

algebra II - How do you know if a quadratic equation will have one, two, or no ...

algebra II - How do you know if a quadratic equation will have one, two, or no ...

ALGEBRA-MAT117 - How do you know if a quadratic equation will have one, two, or ...

ALGEBRA - How do you know if a quadratic equation will have one, two, or no ...

Algebra - How do you know if a quadratic equation will have one, two, or no ...

algebra II - I'm quite clueless as to how to solve this. I know the quadratic ...

Algebra Quadratic Equations - I am trying to define the different appraoches to ...

Mat/117 DQ1 - How do you know if a quadratic equation will have one, two, or no...

algebra - Solve the quadratic equation: 2x(squared)+6x+12=0 I know you have to ...

algebra - Why are there two solutions in the quadratic equation and Why do you ...