-x^2+2x=-8-10x

Simple and best practice solution for -x^2+2x=-8-10x 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 -x^2+2x=-8-10x equation:


Simplifying
-1x2 + 2x = -8 + -10x

Reorder the terms:
2x + -1x2 = -8 + -10x

Solving
2x + -1x2 = -8 + -10x

Solving for variable 'x'.

Reorder the terms:
8 + 2x + 10x + -1x2 = -8 + -10x + 8 + 10x

Combine like terms: 2x + 10x = 12x
8 + 12x + -1x2 = -8 + -10x + 8 + 10x

Reorder the terms:
8 + 12x + -1x2 = -8 + 8 + -10x + 10x

Combine like terms: -8 + 8 = 0
8 + 12x + -1x2 = 0 + -10x + 10x
8 + 12x + -1x2 = -10x + 10x

Combine like terms: -10x + 10x = 0
8 + 12x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-8 + -12x + x2 = 0

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + -12x + 8 + x2 = 0 + 8

Reorder the terms:
-8 + 8 + -12x + x2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -12x + x2 = 0 + 8
-12x + x2 = 0 + 8

Combine like terms: 0 + 8 = 8
-12x + x2 = 8

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = 8 + 36

Reorder the terms:
36 + -12x + x2 = 8 + 36

Combine like terms: 8 + 36 = 44
36 + -12x + x2 = 44

Factor a perfect square on the left side:
(x + -6)(x + -6) = 44

Calculate the square root of the right side: 6.633249581

Break this problem into two subproblems by setting 
(x + -6) equal to 6.633249581 and -6.633249581.

Subproblem 1

x + -6 = 6.633249581 Simplifying x + -6 = 6.633249581 Reorder the terms: -6 + x = 6.633249581 Solving -6 + x = 6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 6.633249581 + 6 Combine like terms: -6 + 6 = 0 0 + x = 6.633249581 + 6 x = 6.633249581 + 6 Combine like terms: 6.633249581 + 6 = 12.633249581 x = 12.633249581 Simplifying x = 12.633249581

Subproblem 2

x + -6 = -6.633249581 Simplifying x + -6 = -6.633249581 Reorder the terms: -6 + x = -6.633249581 Solving -6 + x = -6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -6.633249581 + 6 Combine like terms: -6 + 6 = 0 0 + x = -6.633249581 + 6 x = -6.633249581 + 6 Combine like terms: -6.633249581 + 6 = -0.633249581 x = -0.633249581 Simplifying x = -0.633249581

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.633249581, -0.633249581}

See similar equations:

| 0.05x=-55 | | 22-(3+x)=(x+4) | | 12y=6x-12 | | 7(-4+3)+4=3 | | 5g+8=33 | | a-5-3=12 | | 16-3b=22 | | 10(x+80)+.20x+2=10+.30x | | 4m^3-1= | | 9+4x=5x+18 | | (4r-7)-(3r+12)=0 | | y-8+7=3 | | 5x+12=4x+7 | | p-8+6=15 | | 3x+6=9x-6 | | 19-x=10 | | 15x^2-13x-2=0 | | 0.03*(1156.01+x)=x | | 21-6x=(-11)-14x | | a*a= | | x^2=8+6i | | 3(1-x)-4=7-2x | | 2n+239=12n-11 | | 6x+38=14x-42 | | x-5=3(2-2x) | | 101-6x=39x+21 | | 10-7x=126-35x | | 5x+5=-145-10x | | 5x+5=-10x | | 2z=-4 | | 15x+4y+12=152 | | 4x-7=8x-2x |

Equations solver categories