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

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


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

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

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

Solving for variable 'x'.

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

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

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

Divide each side by '-2'.
-2.5 + 4x + x2 = 0

Move the constant term to the right:

Add '2.5' to each side of the equation.
-2.5 + 4x + 2.5 + x2 = 0 + 2.5

Reorder the terms:
-2.5 + 2.5 + 4x + x2 = 0 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + 4x + x2 = 0 + 2.5
4x + x2 = 0 + 2.5

Combine like terms: 0 + 2.5 = 2.5
4x + x2 = 2.5

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 2.5 + 4

Reorder the terms:
4 + 4x + x2 = 2.5 + 4

Combine like terms: 2.5 + 4 = 6.5
4 + 4x + x2 = 6.5

Factor a perfect square on the left side:
(x + 2)(x + 2) = 6.5

Calculate the square root of the right side: 2.549509757

Break this problem into two subproblems by setting 
(x + 2) equal to 2.549509757 and -2.549509757.

Subproblem 1

x + 2 = 2.549509757 Simplifying x + 2 = 2.549509757 Reorder the terms: 2 + x = 2.549509757 Solving 2 + x = 2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 2.549509757 + -2 Combine like terms: 2 + -2 = 0 0 + x = 2.549509757 + -2 x = 2.549509757 + -2 Combine like terms: 2.549509757 + -2 = 0.549509757 x = 0.549509757 Simplifying x = 0.549509757

Subproblem 2

x + 2 = -2.549509757 Simplifying x + 2 = -2.549509757 Reorder the terms: 2 + x = -2.549509757 Solving 2 + x = -2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -2.549509757 + -2 Combine like terms: 2 + -2 = 0 0 + x = -2.549509757 + -2 x = -2.549509757 + -2 Combine like terms: -2.549509757 + -2 = -4.549509757 x = -4.549509757 Simplifying x = -4.549509757

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.549509757, -4.549509757}

See similar equations:

| 24x-2x^2=64 | | 9x+2y+8z-5x+4z-5y= | | 15-4x= | | -.5x^2+4x+10=20 | | 10x^2+2x-5=0 | | y=2(0)-7 | | x^2+20x+100=36 | | y=2(-1)-7 | | y=2(-2)-7 | | -0.9x^2-3x=-.3x^2-38 | | y=4(0)+8 | | y=4(-2)+8 | | y=4(-1)+8 | | .75x^2-6x-56=.5x^2-1x | | 12=89/x | | n+63=8n | | 2x=(26+x) | | 7x^2-11x-4=2 | | (40+x)2=(3x)2 | | 5(2-b)=7-8b | | -140=3x-17 | | x-5*4=44 | | 4x/4=230/4 | | 4x/4=172/4 | | 4x/4=184/4 | | 3x/3=184/3 | | 2(3x+7)=4(2x+2)32 | | 8-6x=10x+16 | | 4x/4=572/4 | | 140=10x-510 | | x+3x=572 | | 3(4-d)=2(3-d) |

Equations solver categories