-10x^2-12x=-11

Simple and best practice solution for -10x^2-12x=-11 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 -10x^2-12x=-11 equation:


Simplifying
-10x2 + -12x = -11

Reorder the terms:
-12x + -10x2 = -11

Solving
-12x + -10x2 = -11

Solving for variable 'x'.

Reorder the terms:
11 + -12x + -10x2 = -11 + 11

Combine like terms: -11 + 11 = 0
11 + -12x + -10x2 = 0

Begin completing the square.  Divide all terms by
-10 the coefficient of the squared term: 

Divide each side by '-10'.
-1.1 + 1.2x + x2 = 0

Move the constant term to the right:

Add '1.1' to each side of the equation.
-1.1 + 1.2x + 1.1 + x2 = 0 + 1.1

Reorder the terms:
-1.1 + 1.1 + 1.2x + x2 = 0 + 1.1

Combine like terms: -1.1 + 1.1 = 0.0
0.0 + 1.2x + x2 = 0 + 1.1
1.2x + x2 = 0 + 1.1

Combine like terms: 0 + 1.1 = 1.1
1.2x + x2 = 1.1

The x term is 1.2x.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2x + 0.36 + x2 = 1.1 + 0.36

Reorder the terms:
0.36 + 1.2x + x2 = 1.1 + 0.36

Combine like terms: 1.1 + 0.36 = 1.46
0.36 + 1.2x + x2 = 1.46

Factor a perfect square on the left side:
(x + 0.6)(x + 0.6) = 1.46

Calculate the square root of the right side: 1.208304597

Break this problem into two subproblems by setting 
(x + 0.6) equal to 1.208304597 and -1.208304597.

Subproblem 1

x + 0.6 = 1.208304597 Simplifying x + 0.6 = 1.208304597 Reorder the terms: 0.6 + x = 1.208304597 Solving 0.6 + x = 1.208304597 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + x = 1.208304597 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + x = 1.208304597 + -0.6 x = 1.208304597 + -0.6 Combine like terms: 1.208304597 + -0.6 = 0.608304597 x = 0.608304597 Simplifying x = 0.608304597

Subproblem 2

x + 0.6 = -1.208304597 Simplifying x + 0.6 = -1.208304597 Reorder the terms: 0.6 + x = -1.208304597 Solving 0.6 + x = -1.208304597 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + x = -1.208304597 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + x = -1.208304597 + -0.6 x = -1.208304597 + -0.6 Combine like terms: -1.208304597 + -0.6 = -1.808304597 x = -1.808304597 Simplifying x = -1.808304597

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.608304597, -1.808304597}

See similar equations:

| 2x+5+4x-3=26 | | -3x-33=-5x+17 | | 331=6x+7 | | 2(y+5)+(9y+5)=180 | | -121-10x=x+88 | | e+1.8=1.1 | | 4x+5y(6x-16)=-12 | | 10x-40=48+6x | | 120=-3x+4x | | -b+3b=-6-4b+7b | | (2)/(u+4)=-5 | | 15=3x+2x | | -5(z+1)+3(3z-5)=3(z-3)+8 | | -8y=2-6x | | 11y-9y-7=15.98 | | -3p-6=-14-4p | | -x+2x=-11 | | 49/98=s/12 | | -2n^2+3n=0 | | 3-3y=5y-21 | | -3x-139=77+5x | | .01x+.05x+.1x.125x=24.60 | | 2(5x-6)-(3x+1)=6x | | 8.1x+1.2=-1.5 | | 7=-(2)/(u+3) | | (2x^2)(.3-x)=53.3 | | k/5=-10 | | 5x+89=14x-10 | | 4b/13=8/13 | | 4(3z+1)-9=103 | | -3x+2x=-100 | | .25p=482.63 |

Equations solver categories