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Try reviewing these fundamentals first

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- Quadratic Equations and Inequalities

Still Confused?

Try reviewing these fundamentals first

Still Confused?

Try reviewing these fundamentals first

Nope, got it.

That's the last lesson

Start now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started Now- Intro Lesson7:19
- Lesson: 17:16
- Lesson: 23:56
- Lesson: 36:00

Not sure if you should solve the quadratic equation by factoring or completing the square? No worries. You can always use the quadratic formula. The beauty of the quadratic formula is that it can always give you the answer no matter if the quadratic equations can be factored or not.

Basic Concepts: Quadratic function in general form: $y = ax^2 + bx+c$, Shortcut: Vertex formula, Multiplying and dividing radicals

Related Concepts: System of quadratic-quadratic equations, Graphing quadratic inequalities in two variables, Graphing systems of quadratic inequalities, Conics - Parabola

For the quadratic equation: $a{x^2} + bx + c = 0$

the solutions are: $x = \frac{{ - b\; \pm \;\sqrt {{b^2} - 4ac} }}{{2a}}$

- IntroductionSolve the equation using the quadratic formula:

$2{x^2} - 12x + 10 = 0$ - 1.
**Solving a quadratic equation with TWO REAL SOLUTIONS**

Solve using the quadratic formula: $x^2+10x+6=0$ - 2.
**Solving a quadratic equation with ONE (REPEATED) REAL SOLUTION**

Solve using the quadratic formula: $9x^2+25=30x$ - 3.
**Solving a quadratic equation with TWO COMPLEX SOLUTIONS**

Solve using the quadratic formula: $-3x^2-24x=49$

35.

Quadratic Equations and Inequalities

35.1

Solving quadratic equations by factoring

35.2

Solving quadratic equations by completing the square

35.3

Using quadratic formula to solve quadratic equations

35.4

Nature of roots of quadratic equations: The discriminant

35.5

Applications of quadratic equations

35.6

Solving quadratic inequalities

We have over 2320 practice questions in ACCUPLACER Test Prep for you to master.

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