x^2+6x=-4x^2+2

Simple and best practice solution for x^2+6x=-4x^2+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 x^2+6x=-4x^2+2 equation:


Simplifying
x2 + 6x = -4x2 + 2

Reorder the terms:
6x + x2 = -4x2 + 2

Reorder the terms:
6x + x2 = 2 + -4x2

Solving
6x + x2 = 2 + -4x2

Solving for variable 'x'.

Reorder the terms:
-2 + 6x + x2 + 4x2 = 2 + -4x2 + -2 + 4x2

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

Reorder the terms:
-2 + 6x + 5x2 = 2 + -2 + -4x2 + 4x2

Combine like terms: 2 + -2 = 0
-2 + 6x + 5x2 = 0 + -4x2 + 4x2
-2 + 6x + 5x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
-2 + 6x + 5x2 = 0

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

Divide each side by '5'.
-0.4 + 1.2x + x2 = 0

Move the constant term to the right:

Add '0.4' to each side of the equation.
-0.4 + 1.2x + 0.4 + x2 = 0 + 0.4

Reorder the terms:
-0.4 + 0.4 + 1.2x + x2 = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 1.2x + x2 = 0 + 0.4
1.2x + x2 = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
1.2x + x2 = 0.4

The x term is 1.2x.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2x + 0.36 + x2 = 0.4 + 0.36

Reorder the terms:
0.36 + 1.2x + x2 = 0.4 + 0.36

Combine like terms: 0.4 + 0.36 = 0.76
0.36 + 1.2x + x2 = 0.76

Factor a perfect square on the left side:
(x + 0.6)(x + 0.6) = 0.76

Calculate the square root of the right side: 0.871779789

Break this problem into two subproblems by setting 
(x + 0.6) equal to 0.871779789 and -0.871779789.

Subproblem 1

x + 0.6 = 0.871779789 Simplifying x + 0.6 = 0.871779789 Reorder the terms: 0.6 + x = 0.871779789 Solving 0.6 + x = 0.871779789 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + x = 0.871779789 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + x = 0.871779789 + -0.6 x = 0.871779789 + -0.6 Combine like terms: 0.871779789 + -0.6 = 0.271779789 x = 0.271779789 Simplifying x = 0.271779789

Subproblem 2

x + 0.6 = -0.871779789 Simplifying x + 0.6 = -0.871779789 Reorder the terms: 0.6 + x = -0.871779789 Solving 0.6 + x = -0.871779789 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + x = -0.871779789 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + x = -0.871779789 + -0.6 x = -0.871779789 + -0.6 Combine like terms: -0.871779789 + -0.6 = -1.471779789 x = -1.471779789 Simplifying x = -1.471779789

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.271779789, -1.471779789}

See similar equations:

| 14m+6=20 | | -4-9(2c-1)= | | P=2(50)+2(91) | | 4(3x+8)=-49+33 | | 12b-9+2b-b=87 | | -7(x+4)+7(2x+1)= | | 30x^2-28x+6=0 | | Y=16x^2-2x-5 | | 3a+1=3.6(a-1) | | Y=3x^2-8x+5 | | y^3+2y^2+2zy^2+2z^2y+z^2y+z^3=729 | | G(x)=3x^2-8x+5 | | Y=4x^2-19x-5 | | (6x+1)-(4x+3)= | | 9-15x-6-6x=6 | | 18x-7=7+11x | | 36z^2+96z+15=0 | | 4k-(2k-5)= | | 12+5x-8=12x-10 | | u-9=-7u+7 | | 4x+5=-19 | | -50-18=a | | 3(z-2)+8z-1= | | 5n=3n+26 | | x+8-3x-10=5x-4+2x-10 | | 0.60x-2.5=0.03x+8.9 | | 0.7x+3=0.5x+2 | | 6f-4=4f+6 | | 4x+5=8x+8 | | 5(x-3)-(x-1)=-14 | | 2(1+2y)=3(2y-4) | | 5b-4b=6b+2 |

Equations solver categories