2x^2-11x+18=0

Simple and best practice solution for 2x^2-11x+18=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2x^2-11x+18=0 equation:


Simplifying
2x2 + -11x + 18 = 0

Reorder the terms:
18 + -11x + 2x2 = 0

Solving
18 + -11x + 2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
9 + -5.5x + x2 = 0

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + -5.5x + -9 + x2 = 0 + -9

Reorder the terms:
9 + -9 + -5.5x + x2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -5.5x + x2 = 0 + -9
-5.5x + x2 = 0 + -9

Combine like terms: 0 + -9 = -9
-5.5x + x2 = -9

The x term is -5.5x.  Take half its coefficient (-2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
-5.5x + 7.5625 + x2 = -9 + 7.5625

Reorder the terms:
7.5625 + -5.5x + x2 = -9 + 7.5625

Combine like terms: -9 + 7.5625 = -1.4375
7.5625 + -5.5x + x2 = -1.4375

Factor a perfect square on the left side:
(x + -2.75)(x + -2.75) = -1.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 8x^2+40x+49=0 | | 8x^2+40+49=0 | | 4/5x+5=-3 | | X+6=36 | | y=-24x^2-4x | | y=-342x^2-4x | | 5x/7+5=50 | | y=5x/7 | | -2w+14w+3=8w+27 | | 180+9x=4(x+20) | | 5-3(x-1)=6+2x | | 3x^2-4x+32=0 | | 6x+54=140 | | 45-(3x+4)=5x-20 | | 5lnx+3=0 | | 15x+18=9x | | 20+(14-x)=16 | | t^2=48 | | 6k-12=18 | | 8h=32 | | 3-(x-1)=0,2x-2 | | 12x=3(3x+5) | | 4y-2=2y+8 | | -2+9x=12-5x | | x=6x-8 | | 3(5t-2)=4(3t+6) | | 10(x+1)+x=12x | | 10(x+1)+x= | | 18.6=.30*x | | 2x^2+11x+2=2x+7 | | 2d^2+15d-8=0 | | 1/2(-2x-6)= |

Equations solver categories