Quadratic formula examples problems

Put in a, b and c: x = [ − (−30) ± √ ( (−30)2 −4×3× (−12)) ] / (2×3) Solve: x = [ 30 ± √ (900+144) ] / 6. x = [ 30 ± √ (1044) ] / 6. x = ( 30 ± 32.31 ) / 6. x = −0.39 or 10.39. Answer: x = −0.39 or 10.39 (to 2 decimal places) x = −0.39 makes no sense for

Get Started

Quadratic formula

For problems 1 – 7 solve the quadratic equation by factoring. u2 −5u−14 = 0 u 2 − 5 u − 14 = 0 Solution. x2 +15x =−50 x 2 + 15 x = − 50 Solution. y2 = 11y−28 y 2 = 11 y − 28

Clear up mathematic equation

To solve a mathematical equation, you need to clear up the equation by finding the value of the unknown variable.

Get help from expert tutors

Expert tutors are available to help with any subject.

Expert instructors will give you an answer in real-time

Looking for a quick and easy way to get help with your homework? Our expert tutors are available 24/7 to give you the answer you need in real-time.

Quadratic Formula Practice

The quadratic formula is used to solve quadratic equations. Consider a quadratic equation in standard form: ax2 + bx + c = 0 a x 2 + b x + c = 0 You may also see the standard form called a general quadratic equation, or the general form. So

Get Started

Our students love us

Always helps me when I don't understand the question and concepts of it, it has benefitted me a bunch and has improved my math results, i got to the point where this is all I'm going to use haha.

Kelly Kellerman

It's really helpful. Tooooooo goood app, love it! I'm in college now and struggling with the new distance learning experience but with the application app I can get a different approach to the work, amazing app! [does not require a specific age] helps a lot with checking work.

Leonard Delaney