x^2+6x-1.35=2x^2+2x+2.56

Simple and best practice solution for x^2+6x-1.35=2x^2+2x+2.56 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 x^2+6x-1.35=2x^2+2x+2.56 equation:


Simplifying
x2 + 6x + -1.35 = 2x2 + 2x + 2.56

Reorder the terms:
-1.35 + 6x + x2 = 2x2 + 2x + 2.56

Reorder the terms:
-1.35 + 6x + x2 = 2.56 + 2x + 2x2

Solving
-1.35 + 6x + x2 = 2.56 + 2x + 2x2

Solving for variable 'x'.

Reorder the terms:
-1.35 + -2.56 + 6x + -2x + x2 + -2x2 = 2.56 + 2x + 2x2 + -2.56 + -2x + -2x2

Combine like terms: -1.35 + -2.56 = -3.91
-3.91 + 6x + -2x + x2 + -2x2 = 2.56 + 2x + 2x2 + -2.56 + -2x + -2x2

Combine like terms: 6x + -2x = 4x
-3.91 + 4x + x2 + -2x2 = 2.56 + 2x + 2x2 + -2.56 + -2x + -2x2

Combine like terms: x2 + -2x2 = -1x2
-3.91 + 4x + -1x2 = 2.56 + 2x + 2x2 + -2.56 + -2x + -2x2

Reorder the terms:
-3.91 + 4x + -1x2 = 2.56 + -2.56 + 2x + -2x + 2x2 + -2x2

Combine like terms: 2.56 + -2.56 = 0.00
-3.91 + 4x + -1x2 = 0.00 + 2x + -2x + 2x2 + -2x2
-3.91 + 4x + -1x2 = 2x + -2x + 2x2 + -2x2

Combine like terms: 2x + -2x = 0
-3.91 + 4x + -1x2 = 0 + 2x2 + -2x2
-3.91 + 4x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-3.91 + 4x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
3.91 + -4x + x2 = 0

Move the constant term to the right:

Add '-3.91' to each side of the equation.
3.91 + -4x + -3.91 + x2 = 0 + -3.91

Reorder the terms:
3.91 + -3.91 + -4x + x2 = 0 + -3.91

Combine like terms: 3.91 + -3.91 = 0.00
0.00 + -4x + x2 = 0 + -3.91
-4x + x2 = 0 + -3.91

Combine like terms: 0 + -3.91 = -3.91
-4x + x2 = -3.91

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 = -3.91 + 4

Reorder the terms:
4 + -4x + x2 = -3.91 + 4

Combine like terms: -3.91 + 4 = 0.09
4 + -4x + x2 = 0.09

Factor a perfect square on the left side:
(x + -2)(x + -2) = 0.09

Calculate the square root of the right side: 0.3

Break this problem into two subproblems by setting 
(x + -2) equal to 0.3 and -0.3.

Subproblem 1

x + -2 = 0.3 Simplifying x + -2 = 0.3 Reorder the terms: -2 + x = 0.3 Solving -2 + x = 0.3 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 = 0.3 + 2 Combine like terms: -2 + 2 = 0 0 + x = 0.3 + 2 x = 0.3 + 2 Combine like terms: 0.3 + 2 = 2.3 x = 2.3 Simplifying x = 2.3

Subproblem 2

x + -2 = -0.3 Simplifying x + -2 = -0.3 Reorder the terms: -2 + x = -0.3 Solving -2 + x = -0.3 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 = -0.3 + 2 Combine like terms: -2 + 2 = 0 0 + x = -0.3 + 2 x = -0.3 + 2 Combine like terms: -0.3 + 2 = 1.7 x = 1.7 Simplifying x = 1.7

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.3, 1.7}

See similar equations:

| 24(m-3)+3.8=-8.2 | | m/15-1=m-43/45 | | 11/x+3 | | K^2+10k=-16 | | 8x^2-9x+7= | | (8x^3-9x^2+7x)-(8x^2+3x+4)= | | 5(10x-18)=460 | | r^2+r+5=7 | | w-2/9+5/9 | | -3/2-2/3u=5/4 | | 2/p=1 | | 4-f=1 | | 6x+29=2+3x | | 8x^2+35x+32=-5x | | -8i(2i-7)=-16i^2-56i | | n^2=-6+7n | | x^2+2x-4=5 | | 50t+25=645 | | 7(6x+15)=441 | | x^2-4x+4-12=0 | | a/40=9.1/20 | | b^2-24=2b | | ln(4x+13)=2 | | 4x/y=2(1/2+1) | | 4f(3-5)= | | x^2-10x+25-100=0 | | 216=6w | | 23x-5=16 | | X^3-12x^2+36x= | | 2x+19=3x+22 | | 5x+5x^2=12 | | 15x+5x^2+5x^3=12 |

Equations solver categories