SOLUTION: -9x^2 + 3x - 11 = 0 *

Algebra.Com
Question 791362: -9x^2 + 3x - 11 = 0
*

Answer by jim_thompson5910(35256)   (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=-9, b=3, and c=-11




Square 3 to get 9




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 -9 to get -18




After simplifying, the quadratic has roots of


or



RELATED QUESTIONS

3x^2-9x=0 (answered by drj)
3x+5(2x-11)=2+9x (answered by orca)
Please help solve:... (answered by Alan3354)
3x²... (answered by josgarithmetic,MathLover1)
[ solve the quadratic 2x^2 - 9x - 11 = 0... (answered by TimothyLamb)
4. x^2 + 3x = 28 5.2x^2 + 9x - 5 = 0 (answered by stanbon)
Need some help . Thanks. 1.)11-4|7x-3|=6 2.)4|9x-27|-32x=0 3.)|3x-2|+3=7 (answered by stanbon)
Solve by completing the square.... (answered by stanbon)