x+5x^2=2

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


Simplifying
x + 5x2 = 2

Solving
x + 5x2 = 2

Solving for variable 'x'.

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

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

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

Divide each side by '5'.
-0.4 + 0.2x + x2 = 0

Move the constant term to the right:

Add '0.4' to each side of the equation.
-0.4 + 0.2x + 0.4 + x2 = 0 + 0.4

Reorder the terms:
-0.4 + 0.4 + 0.2x + x2 = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 0.2x + x2 = 0 + 0.4
0.2x + x2 = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
0.2x + x2 = 0.4

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.
0.2x + 0.25 + x2 = 0.4 + 0.25

Reorder the terms:
0.25 + 0.2x + x2 = 0.4 + 0.25

Combine like terms: 0.4 + 0.25 = 0.65
0.25 + 0.2x + x2 = 0.65

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 0.65

Calculate the square root of the right side: 0.806225775

Break this problem into two subproblems by setting 
(x + 0.5) equal to 0.806225775 and -0.806225775.

Subproblem 1

x + 0.5 = 0.806225775 Simplifying x + 0.5 = 0.806225775 Reorder the terms: 0.5 + x = 0.806225775 Solving 0.5 + x = 0.806225775 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 = 0.806225775 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.806225775 + -0.5 x = 0.806225775 + -0.5 Combine like terms: 0.806225775 + -0.5 = 0.306225775 x = 0.306225775 Simplifying x = 0.306225775

Subproblem 2

x + 0.5 = -0.806225775 Simplifying x + 0.5 = -0.806225775 Reorder the terms: 0.5 + x = -0.806225775 Solving 0.5 + x = -0.806225775 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 = -0.806225775 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.806225775 + -0.5 x = -0.806225775 + -0.5 Combine like terms: -0.806225775 + -0.5 = -1.306225775 x = -1.306225775 Simplifying x = -1.306225775

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.306225775, -1.306225775}

See similar equations:

| y=-5/2 | | 2+2=v | | (p+5)^2=69/2 | | 35/6-5/8 | | 1+2/m | | 9/10+3/10 | | s^2=8 | | 33=9x+1/2+7x-9/6 | | 10x-4=-24 | | 6(-2.1x+2.2)+3.6= | | s^2=121 | | 12=8t-t^2 | | 7x^2+34x+5=0 | | x*x-2=255 | | x^2=x+8 | | ab^2+5-a^2-3b-ab^2+3a^2+1=0 | | 35cm= | | ab^2+5=0 | | X=90+-1 | | r=4m+4v | | 6a-14=-2 | | 6=20-3x | | x-0.08x=22.40 | | 4=20-3x | | 2=20-3x | | 0=20-3x | | 3v=-2 | | 35r+15s= | | 64*36*h=v | | 5x-3/4 | | -7d+14/2 | | 7(7y+14)= |

Equations solver categories