2x^2+4x-2=

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


Simplifying
2x2 + 4x + -2 = 0

Reorder the terms:
-2 + 4x + 2x2 = 0

Solving
-2 + 4x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-1 + 2x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-1 + 2x + x2)' equal to zero and attempt to solve: Simplifying -1 + 2x + x2 = 0 Solving -1 + 2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '1' to each side of the equation. -1 + 2x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + 2x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 2x + x2 = 0 + 1 2x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 2x + x2 = 1 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 = 1 + 1 Reorder the terms: 1 + 2x + x2 = 1 + 1 Combine like terms: 1 + 1 = 2 1 + 2x + x2 = 2 Factor a perfect square on the left side: (x + 1)(x + 1) = 2 Calculate the square root of the right side: 1.414213562 Break this problem into two subproblems by setting (x + 1) equal to 1.414213562 and -1.414213562.

Subproblem 1

x + 1 = 1.414213562 Simplifying x + 1 = 1.414213562 Reorder the terms: 1 + x = 1.414213562 Solving 1 + x = 1.414213562 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 = 1.414213562 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.414213562 + -1 x = 1.414213562 + -1 Combine like terms: 1.414213562 + -1 = 0.414213562 x = 0.414213562 Simplifying x = 0.414213562

Subproblem 2

x + 1 = -1.414213562 Simplifying x + 1 = -1.414213562 Reorder the terms: 1 + x = -1.414213562 Solving 1 + x = -1.414213562 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 = -1.414213562 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.414213562 + -1 x = -1.414213562 + -1 Combine like terms: -1.414213562 + -1 = -2.414213562 x = -2.414213562 Simplifying x = -2.414213562

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.414213562, -2.414213562}

Solution

x = {0.414213562, -2.414213562}

See similar equations:

| 4(3n-1.2)-0.5=9.5n+6.2 | | -3x(x+4)+3=7(x+3)+6 | | 2x^2+9x-3= | | 3x+20=40-2x | | 5(x-8)+7(6+4x)=-13 | | 2(3x-1)=-4 | | -0.1x+0.6x+6=7 | | 4(-4+5)+7(-4+8)= | | 3(y-2)=42 | | n+5-8=84 | | n+5-8=84 | | 5X-40+42+28X=-13 | | 26-m=-40 | | 8x(3x^2-2x+4)= | | 2y^2-12+5y=0 | | -3h+18h+-13h=20 | | -1x=18 | | T+15=-17 | | -12x+6x=18 | | -3n+11+7n=27 | | 0x+3=3x | | -11c+-8c+20c=7 | | x-3=3x+11 | | 0x+3=0x | | 250+20h=300 | | a=8+x | | 4x-7=6x-27 | | B^2-7b+5=0 | | x^2+4x-3= | | 0x+3=0 | | 2x+44=98 | | 7(T-2)+3T=5(2T+4)-10 |

Equations solver categories