5x^2=2-2x

Simple and best practice solution for 5x^2=2-2x 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 5x^2=2-2x equation:


Simplifying
5x2 = 2 + -2x

Solving
5x2 = 2 + -2x

Solving for variable 'x'.

Reorder the terms:
-2 + 2x + 5x2 = 2 + -2x + -2 + 2x

Reorder the terms:
-2 + 2x + 5x2 = 2 + -2 + -2x + 2x

Combine like terms: 2 + -2 = 0
-2 + 2x + 5x2 = 0 + -2x + 2x
-2 + 2x + 5x2 = -2x + 2x

Combine like terms: -2x + 2x = 0
-2 + 2x + 5x2 = 0

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

Divide each side by '5'.
-0.4 + 0.4x + x2 = 0

Move the constant term to the right:

Add '0.4' to each side of the equation.
-0.4 + 0.4x + 0.4 + x2 = 0 + 0.4

Reorder the terms:
-0.4 + 0.4 + 0.4x + x2 = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 0.4x + x2 = 0 + 0.4
0.4x + x2 = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
0.4x + x2 = 0.4

The x term is 0.4x.  Take half its coefficient (0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
0.4x + 0.04 + x2 = 0.4 + 0.04

Reorder the terms:
0.04 + 0.4x + x2 = 0.4 + 0.04

Combine like terms: 0.4 + 0.04 = 0.44
0.04 + 0.4x + x2 = 0.44

Factor a perfect square on the left side:
(x + 0.2)(x + 0.2) = 0.44

Calculate the square root of the right side: 0.663324958

Break this problem into two subproblems by setting 
(x + 0.2) equal to 0.663324958 and -0.663324958.

Subproblem 1

x + 0.2 = 0.663324958 Simplifying x + 0.2 = 0.663324958 Reorder the terms: 0.2 + x = 0.663324958 Solving 0.2 + x = 0.663324958 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = 0.663324958 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = 0.663324958 + -0.2 x = 0.663324958 + -0.2 Combine like terms: 0.663324958 + -0.2 = 0.463324958 x = 0.463324958 Simplifying x = 0.463324958

Subproblem 2

x + 0.2 = -0.663324958 Simplifying x + 0.2 = -0.663324958 Reorder the terms: 0.2 + x = -0.663324958 Solving 0.2 + x = -0.663324958 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = -0.663324958 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = -0.663324958 + -0.2 x = -0.663324958 + -0.2 Combine like terms: -0.663324958 + -0.2 = -0.863324958 x = -0.863324958 Simplifying x = -0.863324958

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.463324958, -0.863324958}

See similar equations:

| 5x-1x+4= | | -4u-u=-12+7 | | 14+6b+7-2b=1+5b | | -4d+8=2-d | | 6x+6=34 | | -1*1-8= | | 7x-40=4x+32 | | 8t=12t^2-15 | | x^2-88=0 | | 42x=165 | | 17+8/9=d+(-2-5/6) | | 2x-10y=-50 | | 3(x-1)=2x-3 | | 30=8+13+c | | 8c-14=8c+14 | | 12t^2-8t-15=0 | | 172=146+2+2x+26 | | -16n+2=-15n-3 | | 1+7/16+s=9/8 | | (x+2)=10 | | -4x=37 | | 6y-9=3y+9 | | 6(x+2)= | | -4+5/12=t-(-10+1/36) | | -5+9=17x-4-16x | | 6x-6=6+4k | | 9(15w+12)=12(9w+32) | | 4x^3-9x^4=0 | | 10x+4y=74 | | 5y-16y=-58-74 | | -7(4x-7)=-135 | | 5g+14=3g |

Equations solver categories