SOLUTION: Use the quadratic formula to find both solutions to the quadratic equation 3x^2-x+4=0

Algebra.Com
Question 738692: Use the quadratic formula to find both solutions to the quadratic equation 3x^2-x+4=0
Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: Quadratic Formula
Let's use the quadratic formula to solve for x:


Starting with the general quadratic





the general solution using the quadratic equation is:







So lets solve ( notice , , and )





Plug in a=3, b=-1, and c=4




Negate -1 to get 1




Square -1 to get 1 (note: remember when you square -1, you must square the negative as well. This is because .)




Multiply to get




Combine like terms in the radicand (everything under the square root)




Simplify the square root (note: If you need help with simplifying the square root, check out this solver)




Multiply 2 and 3 to get 6




After simplifying, the quadratic has roots of


or



RELATED QUESTIONS

Use the quadratic formula to find both solutions to the quadratic equation given below. (answered by stanbon)
Use the quadratic formula to find the solutions to the quadratic equation below.... (answered by Ave)
Use the quadratic formula to find the solutions to the quadratic equation below 3x^2 - (answered by nabla)
use the quadratic formula to find the real solutions x^2+2x-13=0... (answered by checkley77)
Use the quadratic formula to find the solutions to the quadratic equation below. Check... (answered by jim_thompson5910,vleith)
Use the quadratic formula to solve the quadratic equation x^2 − 8x − 4 = 0. (answered by tommyt3rd)
Use the quadratic formula to solve each equation. x^2 + 3x + 2 =... (answered by fractalier)
Use the quadratic formula to solve the equation. If the equation has no real number... (answered by richwmiller)
Use the quadratic formula to solve the following quadratic equation x^2- 4x+ 2 =0 (answered by jim_thompson5910)