SOLUTION: I thought you used the formula -b+-sqroot b^2-4ac/2a My answer did not look right, please help! Solve. 15x^4-11x^2+2=0

Question 374485: I thought you used the formula -b+-sqroot b^2-4ac/2a My answer did not look right, please help!
Solve.
15x^4-11x^2+2=0
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=1 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.4, 0.333333333333333. Here's your graph:

RELATED QUESTIONS
12x^2-18x-6 i used the -b +- square root of b^2-4ac over 2a formula, but i dont know... (answered by stanbon)

Please help and show me if I am doing this right! I have to solve an quadratic formula:... (answered by Alan3354,bucky)

if ax2+bx+c=0 Prove... (answered by rapaljer)

Would you help me figure out this problem? I seem to mess up on signs. This is not... (answered by richard1234)

Find the exact complex number solutions to the quadratic equation using the quadratic... (answered by richwmiller)

Hi, I hope I am submitting this problem under the right section, the chapter I'm... (answered by edjones)

solve using Q. F. Formula x=-b+- sq b-4ac/2a 2x^2+x-1=0 the answer is 1/2,1... (answered by Earlsdon)

solve using Q. F. Formula x=-b+- sq b-4ac/2a 2x^2+x-1=0 the answer is 1/2,1... (answered by uma)

Hi, I am having trouble solving quadratic equations. I get down to the bottom of the... (answered by jsmallt9)