10x^2+5x-2=0

Simple and best practice solution for 10x^2+5x-2=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 10x^2+5x-2=0 equation:


Simplifying
10x2 + 5x + -2 = 0

Reorder the terms:
-2 + 5x + 10x2 = 0

Solving
-2 + 5x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
-0.2 + 0.5x + x2 = 0

Move the constant term to the right:

Add '0.2' to each side of the equation.
-0.2 + 0.5x + 0.2 + x2 = 0 + 0.2

Reorder the terms:
-0.2 + 0.2 + 0.5x + x2 = 0 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + 0.5x + x2 = 0 + 0.2
0.5x + x2 = 0 + 0.2

Combine like terms: 0 + 0.2 = 0.2
0.5x + x2 = 0.2

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 0.2 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 0.2 + 0.0625

Combine like terms: 0.2 + 0.0625 = 0.2625
0.0625 + 0.5x + x2 = 0.2625

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 0.2625

Calculate the square root of the right side: 0.512347538

Break this problem into two subproblems by setting 
(x + 0.25) equal to 0.512347538 and -0.512347538.

Subproblem 1

x + 0.25 = 0.512347538 Simplifying x + 0.25 = 0.512347538 Reorder the terms: 0.25 + x = 0.512347538 Solving 0.25 + x = 0.512347538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = 0.512347538 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = 0.512347538 + -0.25 x = 0.512347538 + -0.25 Combine like terms: 0.512347538 + -0.25 = 0.262347538 x = 0.262347538 Simplifying x = 0.262347538

Subproblem 2

x + 0.25 = -0.512347538 Simplifying x + 0.25 = -0.512347538 Reorder the terms: 0.25 + x = -0.512347538 Solving 0.25 + x = -0.512347538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = -0.512347538 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = -0.512347538 + -0.25 x = -0.512347538 + -0.25 Combine like terms: -0.512347538 + -0.25 = -0.762347538 x = -0.762347538 Simplifying x = -0.762347538

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.262347538, -0.762347538}

See similar equations:

| y=x^4+4x^3-14x^2-36x+45 | | x^4-4x^3-14x^2-36x+45=0 | | .13x+2.49y=20 | | 9(f+4)=3f+24 | | 16+14=x | | 2x^4-2x^2+1=0 | | 3(2x-6)=2(3mx-n) | | 5d=6(d-8) | | -(3y+8)=16-y | | 24+20+18=x | | n(n+1)+(n+1)= | | p=15x^2+600x+50 | | .5x+2=4.5 | | .5+2=-4.5 | | 2(5c+1)=20 | | 10pq-5+4pq+6= | | 5x-2=-3x | | -3c+40=4-7c | | 2X+4Y=152 | | -8=2y+1 | | 39+9= | | 4(7-b)=48 | | 4(7-b)=8 | | 2(n+1)=6 | | 2x^2+5x-83=0 | | 256b^2-100c^2= | | 7k+15=4k+6 | | 7k+15=4x+6 | | 4n+9=-7-5n | | 28+26k=35+19k | | 60k+80k=50k+100 | | 40-3Xa=25 |

Equations solver categories