2x^2+4x-3=5-2x-0.5x^2

Simple and best practice solution for 2x^2+4x-3=5-2x-0.5x^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-3=5-2x-0.5x^2 equation:


Simplifying
2x2 + 4x + -3 = 5 + -2x + -0.5x2

Reorder the terms:
-3 + 4x + 2x2 = 5 + -2x + -0.5x2

Solving
-3 + 4x + 2x2 = 5 + -2x + -0.5x2

Solving for variable 'x'.

Reorder the terms:
-3 + -5 + 4x + 2x + 2x2 + 0.5x2 = 5 + -2x + -0.5x2 + -5 + 2x + 0.5x2

Combine like terms: -3 + -5 = -8
-8 + 4x + 2x + 2x2 + 0.5x2 = 5 + -2x + -0.5x2 + -5 + 2x + 0.5x2

Combine like terms: 4x + 2x = 6x
-8 + 6x + 2x2 + 0.5x2 = 5 + -2x + -0.5x2 + -5 + 2x + 0.5x2

Combine like terms: 2x2 + 0.5x2 = 2.5x2
-8 + 6x + 2.5x2 = 5 + -2x + -0.5x2 + -5 + 2x + 0.5x2

Reorder the terms:
-8 + 6x + 2.5x2 = 5 + -5 + -2x + 2x + -0.5x2 + 0.5x2

Combine like terms: 5 + -5 = 0
-8 + 6x + 2.5x2 = 0 + -2x + 2x + -0.5x2 + 0.5x2
-8 + 6x + 2.5x2 = -2x + 2x + -0.5x2 + 0.5x2

Combine like terms: -2x + 2x = 0
-8 + 6x + 2.5x2 = 0 + -0.5x2 + 0.5x2
-8 + 6x + 2.5x2 = -0.5x2 + 0.5x2

Combine like terms: -0.5x2 + 0.5x2 = 0.0
-8 + 6x + 2.5x2 = 0.0

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

Divide each side by '2.5'.
-3.2 + 2.4x + x2 = 0

Move the constant term to the right:

Add '3.2' to each side of the equation.
-3.2 + 2.4x + 3.2 + x2 = 0 + 3.2

Reorder the terms:
-3.2 + 3.2 + 2.4x + x2 = 0 + 3.2

Combine like terms: -3.2 + 3.2 = 0.0
0.0 + 2.4x + x2 = 0 + 3.2
2.4x + x2 = 0 + 3.2

Combine like terms: 0 + 3.2 = 3.2
2.4x + x2 = 3.2

The x term is 2.4x.  Take half its coefficient (1.2).
Square it (1.44) and add it to both sides.

Add '1.44' to each side of the equation.
2.4x + 1.44 + x2 = 3.2 + 1.44

Reorder the terms:
1.44 + 2.4x + x2 = 3.2 + 1.44

Combine like terms: 3.2 + 1.44 = 4.64
1.44 + 2.4x + x2 = 4.64

Factor a perfect square on the left side:
(x + 1.2)(x + 1.2) = 4.64

Calculate the square root of the right side: 2.154065923

Break this problem into two subproblems by setting 
(x + 1.2) equal to 2.154065923 and -2.154065923.

Subproblem 1

x + 1.2 = 2.154065923 Simplifying x + 1.2 = 2.154065923 Reorder the terms: 1.2 + x = 2.154065923 Solving 1.2 + x = 2.154065923 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.2' to each side of the equation. 1.2 + -1.2 + x = 2.154065923 + -1.2 Combine like terms: 1.2 + -1.2 = 0.0 0.0 + x = 2.154065923 + -1.2 x = 2.154065923 + -1.2 Combine like terms: 2.154065923 + -1.2 = 0.954065923 x = 0.954065923 Simplifying x = 0.954065923

Subproblem 2

x + 1.2 = -2.154065923 Simplifying x + 1.2 = -2.154065923 Reorder the terms: 1.2 + x = -2.154065923 Solving 1.2 + x = -2.154065923 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.2' to each side of the equation. 1.2 + -1.2 + x = -2.154065923 + -1.2 Combine like terms: 1.2 + -1.2 = 0.0 0.0 + x = -2.154065923 + -1.2 x = -2.154065923 + -1.2 Combine like terms: -2.154065923 + -1.2 = -3.354065923 x = -3.354065923 Simplifying x = -3.354065923

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.954065923, -3.354065923}

See similar equations:

| 10x+8=9x+3 | | 3c+71=173 | | x*.35=180 | | x=(180).35 | | 3(x-3)=1/4(16x-8) | | -6x+24= | | 4=-3-b | | 1/4y-4=1/10y | | 3=2g+9 | | 2x^2+4x=15-3x | | -16(-3+m)=-272 | | 2x-5y+4z=13 | | 5(7x+7)=6(-2x-2) | | 4a-59=33 | | 6/x=1.6 | | Y-106=29 | | 10x-5x+4=0 | | 4x^3-24x^2+12x=0 | | 7x=266 | | -14+5n=3+8(n-4) | | X+3(35)=-1 | | 3x+2y-6z=-2 | | 5/2b-10 | | 4x-4y+2z=17 | | 2x-6y+4z=-8 | | 7(n-7)-7(2+3n)=9-8n | | -16t^2+14t+10=0 | | 52=x+6 | | -x+3y-3y-2z=4 | | 3+5log(x^2-3x)=8 | | 9b+3b-4b=8b | | 9b+3b-4b= |

Equations solver categories