4*x-0.125*x^2-12=0

Simple and best practice solution for 4*x-0.125*x^2-12=0 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 4*x-0.125*x^2-12=0 equation:


Simplifying
4x + -0.125x2 + -12 = 0

Reorder the terms:
-12 + 4x + -0.125x2 = 0

Solving
-12 + 4x + -0.125x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.125 the coefficient of the squared term: 

Divide each side by '-0.125'.
96 + -32x + x2 = 0

Move the constant term to the right:

Add '-96' to each side of the equation.
96 + -32x + -96 + x2 = 0 + -96

Reorder the terms:
96 + -96 + -32x + x2 = 0 + -96

Combine like terms: 96 + -96 = 0
0 + -32x + x2 = 0 + -96
-32x + x2 = 0 + -96

Combine like terms: 0 + -96 = -96
-32x + x2 = -96

The x term is -32x.  Take half its coefficient (-16).
Square it (256) and add it to both sides.

Add '256' to each side of the equation.
-32x + 256 + x2 = -96 + 256

Reorder the terms:
256 + -32x + x2 = -96 + 256

Combine like terms: -96 + 256 = 160
256 + -32x + x2 = 160

Factor a perfect square on the left side:
(x + -16)(x + -16) = 160

Calculate the square root of the right side: 12.649110641

Break this problem into two subproblems by setting 
(x + -16) equal to 12.649110641 and -12.649110641.

Subproblem 1

x + -16 = 12.649110641 Simplifying x + -16 = 12.649110641 Reorder the terms: -16 + x = 12.649110641 Solving -16 + x = 12.649110641 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = 12.649110641 + 16 Combine like terms: -16 + 16 = 0 0 + x = 12.649110641 + 16 x = 12.649110641 + 16 Combine like terms: 12.649110641 + 16 = 28.649110641 x = 28.649110641 Simplifying x = 28.649110641

Subproblem 2

x + -16 = -12.649110641 Simplifying x + -16 = -12.649110641 Reorder the terms: -16 + x = -12.649110641 Solving -16 + x = -12.649110641 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = -12.649110641 + 16 Combine like terms: -16 + 16 = 0 0 + x = -12.649110641 + 16 x = -12.649110641 + 16 Combine like terms: -12.649110641 + 16 = 3.350889359 x = 3.350889359 Simplifying x = 3.350889359

Solution

The solution to the problem is based on the solutions from the subproblems. x = {28.649110641, 3.350889359}

See similar equations:

| -24=3-9x | | (m+4)(m-4)=0 | | (6p+4)(8p-3)=0 | | 4-y/8-2y | | x^3-8x^2+23x-22=0 | | 200000*X/3+150000*X=120000*X/3+90000*X+150000*X/3+150000*X+11000000+0.08*120000(500-X/3)+0.08*90000(500-X) | | e/15=5 | | (6n-7)(n-6)=0 | | 200000*(X/3)+150000*X=120000*(X/3)+90000*X+150000*(X/3)+150000*X+11000000+0.08*120000(500-X/3)+0.08*90000(500-X) | | (9x-25/8)-(7x+11/8) | | 2(5x+5)=8x+14 | | 200000*(X/3)+150000*X=120000*(X/3)+90000*X+150000*(X/3)+15*X+11000000+0.08*120000(500-X/3)+0.08*90000(500-X) | | (a+2)(5a+3)=0 | | (9x-31/8)-(7x+13/8) | | 0=-16t^2+52t+3 | | 7x1/10 | | 3(0)-2(5)=10 | | 4x^2-32x-25=0 | | x*log(x)-0.7*x+25=0 | | x*ln(x)-0.7*x+25=0 | | 1/2(41/2)-4=5 | | 1/2*2-4=5 | | 1/2*30-4=5 | | 3x-5=2x-8 | | 2x-8=3x-5 | | 200000*(X/3)+150000*X=120000*(X/3)+90000*X+15000*(X/3)+15*X+11000000+0.08*120000(500-X/3)+0.08*90000(500-X) | | 5(x+3)=x+27 | | 5+(-8)-4=29 | | 7x+27=x+3 | | x=20-2(7.5) | | 5+(-8)3=29 | | (1/3)*x=866 |

Equations solver categories