2x^2+10x+1=0

Simple and best practice solution for 2x^2+10x+1=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+10x+1=0 equation:


Simplifying
2x2 + 10x + 1 = 0

Reorder the terms:
1 + 10x + 2x2 = 0

Solving
1 + 10x + 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'.
0.5 + 5x + x2 = 0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + 5x + -0.5 + x2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + 5x + x2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + 5x + x2 = 0 + -0.5
5x + x2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
5x + x2 = -0.5

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = -0.5 + 6.25

Reorder the terms:
6.25 + 5x + x2 = -0.5 + 6.25

Combine like terms: -0.5 + 6.25 = 5.75
6.25 + 5x + x2 = 5.75

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 5.75

Calculate the square root of the right side: 2.397915762

Break this problem into two subproblems by setting 
(x + 2.5) equal to 2.397915762 and -2.397915762.

Subproblem 1

x + 2.5 = 2.397915762 Simplifying x + 2.5 = 2.397915762 Reorder the terms: 2.5 + x = 2.397915762 Solving 2.5 + x = 2.397915762 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 2.397915762 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 2.397915762 + -2.5 x = 2.397915762 + -2.5 Combine like terms: 2.397915762 + -2.5 = -0.102084238 x = -0.102084238 Simplifying x = -0.102084238

Subproblem 2

x + 2.5 = -2.397915762 Simplifying x + 2.5 = -2.397915762 Reorder the terms: 2.5 + x = -2.397915762 Solving 2.5 + x = -2.397915762 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -2.397915762 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -2.397915762 + -2.5 x = -2.397915762 + -2.5 Combine like terms: -2.397915762 + -2.5 = -4.897915762 x = -4.897915762 Simplifying x = -4.897915762

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.102084238, -4.897915762}

See similar equations:

| X(x^2-6)=108 | | 3x^2+10=10 | | 6(z-2)+2z=7z+3(x-2) | | 2u(3u+4)+3u(2u+1)= | | 6x-28=2x | | g-5=4 | | 2(3z-4)+1=3(z+1) | | -7x+1=-10 | | 7x=6x-12 | | 7x+1=-10 | | 3.2x+4(x+0.7)=38.8 | | 4y=3y+12 | | 5y=11x+15 | | 3x+9x+(12-2x)=2 | | 6-2(x+4)=108 | | 5x+9x-4-6x=12 | | m-3=23 | | 3x+6=y+4 | | 5(2x-1)-2(3x)=1 | | -s=90 | | 5x-(3+2x)=9 | | 6+3x=4+y | | 7y-11+y-3y=9 | | 4(3x+3)-7x=22-5x | | r+7=21 | | 3x+(2+4x)=23 | | -8(45y+18)=3(12y+18) | | -1.2x=4.08 | | 4x-4y+6x-8x+6y= | | 0.7t=-0.98 | | -12.75+5.95= | | 6.1g=3.66 |

Equations solver categories