-4x^2+64=x

Simple and best practice solution for -4x^2+64=x 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 -4x^2+64=x equation:


Simplifying
-4x2 + 64 = x

Reorder the terms:
64 + -4x2 = x

Solving
64 + -4x2 = x

Solving for variable 'x'.

Reorder the terms:
64 + -1x + -4x2 = x + -1x

Combine like terms: x + -1x = 0
64 + -1x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-16 + 0.25x + x2 = 0

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + 0.25x + 16 + x2 = 0 + 16

Reorder the terms:
-16 + 16 + 0.25x + x2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 0.25x + x2 = 0 + 16
0.25x + x2 = 0 + 16

Combine like terms: 0 + 16 = 16
0.25x + x2 = 16

The x term is 0.25x.  Take half its coefficient (0.125).
Square it (0.015625) and add it to both sides.

Add '0.015625' to each side of the equation.
0.25x + 0.015625 + x2 = 16 + 0.015625

Reorder the terms:
0.015625 + 0.25x + x2 = 16 + 0.015625

Combine like terms: 16 + 0.015625 = 16.015625
0.015625 + 0.25x + x2 = 16.015625

Factor a perfect square on the left side:
(x + 0.125)(x + 0.125) = 16.015625

Calculate the square root of the right side: 4.001952648

Break this problem into two subproblems by setting 
(x + 0.125) equal to 4.001952648 and -4.001952648.

Subproblem 1

x + 0.125 = 4.001952648 Simplifying x + 0.125 = 4.001952648 Reorder the terms: 0.125 + x = 4.001952648 Solving 0.125 + x = 4.001952648 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.125' to each side of the equation. 0.125 + -0.125 + x = 4.001952648 + -0.125 Combine like terms: 0.125 + -0.125 = 0.000 0.000 + x = 4.001952648 + -0.125 x = 4.001952648 + -0.125 Combine like terms: 4.001952648 + -0.125 = 3.876952648 x = 3.876952648 Simplifying x = 3.876952648

Subproblem 2

x + 0.125 = -4.001952648 Simplifying x + 0.125 = -4.001952648 Reorder the terms: 0.125 + x = -4.001952648 Solving 0.125 + x = -4.001952648 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.125' to each side of the equation. 0.125 + -0.125 + x = -4.001952648 + -0.125 Combine like terms: 0.125 + -0.125 = 0.000 0.000 + x = -4.001952648 + -0.125 x = -4.001952648 + -0.125 Combine like terms: -4.001952648 + -0.125 = -4.126952648 x = -4.126952648 Simplifying x = -4.126952648

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.876952648, -4.126952648}

See similar equations:

| 6=12+b | | 6+100= | | 3-5(7+2)= | | -16+3x=34+8x | | 4e^4x+e^2x=0 | | 18•1/6 | | 3-5(7-2)= | | 38=-3x+11 | | 4-8x=-1+1-9x+8 | | 4y=-8x-12 | | 2x-2=12-5x | | 2d+8=3(d-2) | | -2(3+2)-7= | | 2/5*-1/7 | | 0.25+0.075p=0.1p | | 2t-18=-5+t | | 2(7-8)+4x=20 | | 3+5(7-2)= | | 2+2x=-6x-38 | | 6(4x-5)=4(x-10) | | 10x-2(4x+3)+1=2x+7-2x | | .20(x-2)=-3 | | 2p=15+p | | x-5.89=-2.3 | | 2/5=s-2/3 | | 9x+6(X-4)=9+4x | | 5-2(5-3)= | | 5=1+4b | | 6x^3-8x^2+2x= | | 5x+6=-6x+24 | | 38-10x=20+8x | | 25=10+5k |

Equations solver categories