11X^2+11X-26=0

Simple and best practice solution for 11X^2+11X-26=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 11X^2+11X-26=0 equation:


Simplifying
11X2 + 11X + -26 = 0

Reorder the terms:
-26 + 11X + 11X2 = 0

Solving
-26 + 11X + 11X2 = 0

Solving for variable 'X'.

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

Divide each side by '11'.
-2.363636364 + X + X2 = 0

Move the constant term to the right:

Add '2.363636364' to each side of the equation.
-2.363636364 + X + 2.363636364 + X2 = 0 + 2.363636364

Reorder the terms:
-2.363636364 + 2.363636364 + X + X2 = 0 + 2.363636364

Combine like terms: -2.363636364 + 2.363636364 = 0.000000000
0.000000000 + X + X2 = 0 + 2.363636364
X + X2 = 0 + 2.363636364

Combine like terms: 0 + 2.363636364 = 2.363636364
X + X2 = 2.363636364

The X term is X.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + X2 = 2.363636364 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + X2 = 2.363636364 + 0.25

Combine like terms: 2.363636364 + 0.25 = 2.613636364
1.25 + X2 = 2.613636364

Factor a perfect square on the left side:
(X + 0.5)(X + 0.5) = 2.613636364

Calculate the square root of the right side: 1.616674477

Break this problem into two subproblems by setting 
(X + 0.5) equal to 1.616674477 and -1.616674477.

Subproblem 1

X + 0.5 = 1.616674477 Simplifying X + 0.5 = 1.616674477 Reorder the terms: 0.5 + X = 1.616674477 Solving 0.5 + X = 1.616674477 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + X = 1.616674477 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = 1.616674477 + -0.5 X = 1.616674477 + -0.5 Combine like terms: 1.616674477 + -0.5 = 1.116674477 X = 1.116674477 Simplifying X = 1.116674477

Subproblem 2

X + 0.5 = -1.616674477 Simplifying X + 0.5 = -1.616674477 Reorder the terms: 0.5 + X = -1.616674477 Solving 0.5 + X = -1.616674477 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + X = -1.616674477 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = -1.616674477 + -0.5 X = -1.616674477 + -0.5 Combine like terms: -1.616674477 + -0.5 = -2.116674477 X = -2.116674477 Simplifying X = -2.116674477

Solution

The solution to the problem is based on the solutions from the subproblems. X = {1.116674477, -2.116674477}

See similar equations:

| h+8h=126 | | 36+x= | | -30x=-108+30x | | 2z-1=1 | | -49x^2+30x+20= | | -19-(-46+33+-17)-(18)=x | | 180+-5x= | | -8=x-8-4x+3x | | 2.50p=8.50p | | 2(z-24)+4(z-4)=38 | | a7+57=27 | | 2(3x-7)=8x+7-2x | | 5y-10+y+18=8y+20-6y | | 16-4x+1+5=1+x+2x | | 2(10x+20)=35 | | 4x-2x+8=4x+1 | | 13-4a=1-a | | -4(x+5)=-2(10+-4x) | | X+5x-180= | | 56x^2+17x-3= | | -19-(-46+33+-17)-18=x | | 5(2x-4)-3(4x+2)=3x+7 | | 7x+2=11x-34 | | x^2-6x+9=3x-9 | | 6x+1=2x-x+21 | | .3333h-9=6-.3333h | | (8)+(-3)= | | 35-3h=-64 | | 10y-7y-1=4y-9 | | 61-b=14 | | -19+-1(-46+33+-17)+-18=x | | 3g-6(6-8)=42 |

Equations solver categories