2x^2+4x+1=2

Simple and best practice solution for 2x^2+4x+1=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 2x^2+4x+1=2 equation:


Simplifying
2x2 + 4x + 1 = 2

Reorder the terms:
1 + 4x + 2x2 = 2

Solving
1 + 4x + 2x2 = 2

Solving for variable 'x'.

Reorder the terms:
1 + -2 + 4x + 2x2 = 2 + -2

Combine like terms: 1 + -2 = -1
-1 + 4x + 2x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-1 + 4x + 2x2 = 0

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

Divide each side by '2'.
-0.5 + 2x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + 2x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + 2x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 2x + x2 = 0 + 0.5
2x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
2x + x2 = 0.5

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 0.5 + 1

Reorder the terms:
1 + 2x + x2 = 0.5 + 1

Combine like terms: 0.5 + 1 = 1.5
1 + 2x + x2 = 1.5

Factor a perfect square on the left side:
(x + 1)(x + 1) = 1.5

Calculate the square root of the right side: 1.224744871

Break this problem into two subproblems by setting 
(x + 1) equal to 1.224744871 and -1.224744871.

Subproblem 1

x + 1 = 1.224744871 Simplifying x + 1 = 1.224744871 Reorder the terms: 1 + x = 1.224744871 Solving 1 + x = 1.224744871 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.224744871 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.224744871 + -1 x = 1.224744871 + -1 Combine like terms: 1.224744871 + -1 = 0.224744871 x = 0.224744871 Simplifying x = 0.224744871

Subproblem 2

x + 1 = -1.224744871 Simplifying x + 1 = -1.224744871 Reorder the terms: 1 + x = -1.224744871 Solving 1 + x = -1.224744871 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.224744871 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.224744871 + -1 x = -1.224744871 + -1 Combine like terms: -1.224744871 + -1 = -2.224744871 x = -2.224744871 Simplifying x = -2.224744871

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.224744871, -2.224744871}

See similar equations:

| 2x^2+yx+1=2 | | (3c^3+6c^2-35c+22)x(-c+2)= | | 9x^2-9x+11xy-11y= | | 5-(n+12)=6n | | x^3-27x^2+2x-54= | | 3x^2-3x=1 | | x^2+11x+3x+33= | | -12g^2h^2+4gh^2-20g^3h= | | 3(y-2)=-y | | -10q^2p^2+25qp^2-5q^3p= | | X+23=47 | | -6y^6+12y^3= | | 11-7t=17 | | -10y^3+20y^2= | | 6x-3-2x^2=0 | | 2x^2=6x-3 | | -5x^2-55x+45= | | y(x+3)-9(x+3)= | | 20=(8p-4p) | | 4x^4-28x^3+4x^2= | | 3x+7y=20 | | 9x^5-45x^4+9x^3= | | u^2-5u+8u=u^2+2u-4 | | 21xyz-81xy= | | 54a^6b^5-12a^5b^6= | | .75x=4.5 | | x+6=2.33 | | (x+4)*(x+4)=(x+3)*(x+3) | | 24b+8=4b+12-9 | | 10.62w^2-18w+13754.37=0 | | 6-3(3-2x)=5-x | | 10.62w^2-18w+13.754=0 |

Equations solver categories