2x^2+.2x-.01=0

Simple and best practice solution for 2x^2+.2x-.01=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 2x^2+.2x-.01=0 equation:


Simplifying
2x2 + 0.2x + -0.01 = 0

Reorder the terms:
-0.01 + 0.2x + 2x2 = 0

Solving
-0.01 + 0.2x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-0.005 + 0.1x + x2 = 0

Move the constant term to the right:

Add '0.005' to each side of the equation.
-0.005 + 0.1x + 0.005 + x2 = 0 + 0.005

Reorder the terms:
-0.005 + 0.005 + 0.1x + x2 = 0 + 0.005

Combine like terms: -0.005 + 0.005 = 0.000
0.000 + 0.1x + x2 = 0 + 0.005
0.1x + x2 = 0 + 0.005

Combine like terms: 0 + 0.005 = 0.005
0.1x + x2 = 0.005

The x term is 0.1x.  Take half its coefficient (0.05).
Square it (0.0025) and add it to both sides.

Add '0.0025' to each side of the equation.
0.1x + 0.0025 + x2 = 0.005 + 0.0025

Reorder the terms:
0.0025 + 0.1x + x2 = 0.005 + 0.0025

Combine like terms: 0.005 + 0.0025 = 0.0075
0.0025 + 0.1x + x2 = 0.0075

Factor a perfect square on the left side:
(x + 0.05)(x + 0.05) = 0.0075

Calculate the square root of the right side: 0.08660254

Break this problem into two subproblems by setting 
(x + 0.05) equal to 0.08660254 and -0.08660254.

Subproblem 1

x + 0.05 = 0.08660254 Simplifying x + 0.05 = 0.08660254 Reorder the terms: 0.05 + x = 0.08660254 Solving 0.05 + x = 0.08660254 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.05' to each side of the equation. 0.05 + -0.05 + x = 0.08660254 + -0.05 Combine like terms: 0.05 + -0.05 = 0.00 0.00 + x = 0.08660254 + -0.05 x = 0.08660254 + -0.05 Combine like terms: 0.08660254 + -0.05 = 0.03660254 x = 0.03660254 Simplifying x = 0.03660254

Subproblem 2

x + 0.05 = -0.08660254 Simplifying x + 0.05 = -0.08660254 Reorder the terms: 0.05 + x = -0.08660254 Solving 0.05 + x = -0.08660254 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.05' to each side of the equation. 0.05 + -0.05 + x = -0.08660254 + -0.05 Combine like terms: 0.05 + -0.05 = 0.00 0.00 + x = -0.08660254 + -0.05 x = -0.08660254 + -0.05 Combine like terms: -0.08660254 + -0.05 = -0.13660254 x = -0.13660254 Simplifying x = -0.13660254

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.03660254, -0.13660254}

See similar equations:

| s=b+2Pirh | | -8+n/12=-7 | | -612=9(-8x-20) | | x+6v=w | | 16d-3(4-5d)= | | 7x(x+6)-6x-36=0 | | 8x-66=4x-14 | | -448=-8(-10x-4) | | -448=-8(-10-4) | | 13-8+4m-6=2m-7 | | 8+3(12+4x)= | | (3x-2)(x+4)=2(x+1)(2x-4) | | 55-7x=11x+23 | | 7K-3K=20 | | 40=-8(-6x+31) | | 7(1+7v)-6=8v-40 | | 7(a-10)=13-2(2a+3) | | 7(y)+5=-9 | | -12(-6x+23)=-780 | | 3-y/2=3/4 | | 8x-7+5x-10=10x-12 | | 5p-18=8p | | 30*7=y | | 620x-3720x^2=0 | | 3x+21=6x+45 | | 7x-5=-9 | | -9(9x-12)=918 | | 10Q^2+14Q-12=0 | | 22-7k=-6(6+6k) | | 17y-56=10y-63 | | -10-5x+9x+8= | | 5+n/4=4 |

Equations solver categories