5x^2+2=3x^2-5x+8

Simple and best practice solution for 5x^2+2=3x^2-5x+8 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 5x^2+2=3x^2-5x+8 equation:


Simplifying
5x2 + 2 = 3x2 + -5x + 8

Reorder the terms:
2 + 5x2 = 3x2 + -5x + 8

Reorder the terms:
2 + 5x2 = 8 + -5x + 3x2

Solving
2 + 5x2 = 8 + -5x + 3x2

Solving for variable 'x'.

Reorder the terms:
2 + -8 + 5x + 5x2 + -3x2 = 8 + -5x + 3x2 + -8 + 5x + -3x2

Combine like terms: 2 + -8 = -6
-6 + 5x + 5x2 + -3x2 = 8 + -5x + 3x2 + -8 + 5x + -3x2

Combine like terms: 5x2 + -3x2 = 2x2
-6 + 5x + 2x2 = 8 + -5x + 3x2 + -8 + 5x + -3x2

Reorder the terms:
-6 + 5x + 2x2 = 8 + -8 + -5x + 5x + 3x2 + -3x2

Combine like terms: 8 + -8 = 0
-6 + 5x + 2x2 = 0 + -5x + 5x + 3x2 + -3x2
-6 + 5x + 2x2 = -5x + 5x + 3x2 + -3x2

Combine like terms: -5x + 5x = 0
-6 + 5x + 2x2 = 0 + 3x2 + -3x2
-6 + 5x + 2x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-6 + 5x + 2x2 = 0

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

Divide each side by '2'.
-3 + 2.5x + x2 = 0

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 2.5x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 2.5x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 2.5x + x2 = 0 + 3
2.5x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
2.5x + x2 = 3

The x term is 2.5x.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5x + 1.5625 + x2 = 3 + 1.5625

Reorder the terms:
1.5625 + 2.5x + x2 = 3 + 1.5625

Combine like terms: 3 + 1.5625 = 4.5625
1.5625 + 2.5x + x2 = 4.5625

Factor a perfect square on the left side:
(x + 1.25)(x + 1.25) = 4.5625

Calculate the square root of the right side: 2.136000936

Break this problem into two subproblems by setting 
(x + 1.25) equal to 2.136000936 and -2.136000936.

Subproblem 1

x + 1.25 = 2.136000936 Simplifying x + 1.25 = 2.136000936 Reorder the terms: 1.25 + x = 2.136000936 Solving 1.25 + x = 2.136000936 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = 2.136000936 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = 2.136000936 + -1.25 x = 2.136000936 + -1.25 Combine like terms: 2.136000936 + -1.25 = 0.886000936 x = 0.886000936 Simplifying x = 0.886000936

Subproblem 2

x + 1.25 = -2.136000936 Simplifying x + 1.25 = -2.136000936 Reorder the terms: 1.25 + x = -2.136000936 Solving 1.25 + x = -2.136000936 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = -2.136000936 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = -2.136000936 + -1.25 x = -2.136000936 + -1.25 Combine like terms: -2.136000936 + -1.25 = -3.386000936 x = -3.386000936 Simplifying x = -3.386000936

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.886000936, -3.386000936}

See similar equations:

| 5(x+1)=2(3-2z)+17 | | 176x^2-300x+51=0 | | 12=t/4 | | 0=-16x^2+38.8t+3 | | 4*x+2*y=14 | | i^41=x | | i^41=-1 | | n=12+m | | 7x+1=x^2 | | 3y-4x=10 | | 3/18=x/12 | | 3.3/1.58=49.75/x | | 9x-19=7x+10 | | 4/16=x/10 | | 9.2N=43.7 | | 1/2-2/3(6x-9)x-2/2 | | X^4-23x-50=0 | | ln(x+1)=2ln(2) | | -4=-11 | | ((43-39/4)*11 | | s^2+5s=-14 | | 100=5/100*x | | 5x-4/4=7 | | ((43-39)/4)x11 | | 3x-5(3x-2)=4(6x-5) | | 416=24a+4b | | 12.5N=39 | | 416=15a+3b | | D-47=18 | | T-6=79 | | 0.3(6+x)=0.4(8-x) | | 36=18+b |

Equations solver categories