98.6x^2-0.042025+4x=0

Simple and best practice solution for 98.6x^2-0.042025+4x=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 98.6x^2-0.042025+4x=0 equation:


Simplifying
98.6x2 + -0.042025 + 4x = 0

Reorder the terms:
-0.042025 + 4x + 98.6x2 = 0

Solving
-0.042025 + 4x + 98.6x2 = 0

Solving for variable 'x'.

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

Divide each side by '98.6'.
-0.0004262170385 + 0.04056795132x + x2 = 0

Move the constant term to the right:

Add '0.0004262170385' to each side of the equation.
-0.0004262170385 + 0.04056795132x + 0.0004262170385 + x2 = 0 + 0.0004262170385

Reorder the terms:
-0.0004262170385 + 0.0004262170385 + 0.04056795132x + x2 = 0 + 0.0004262170385

Combine like terms: -0.0004262170385 + 0.0004262170385 = 0.0000000000000
0.0000000000000 + 0.04056795132x + x2 = 0 + 0.0004262170385
0.04056795132x + x2 = 0 + 0.0004262170385

Combine like terms: 0 + 0.0004262170385 = 0.0004262170385
0.04056795132x + x2 = 0.0004262170385

The x term is 0.04056795132x.  Take half its coefficient (0.02028397566).
Square it (0.0004114396686) and add it to both sides.

Add '0.0004114396686' to each side of the equation.
0.04056795132x + 0.0004114396686 + x2 = 0.0004262170385 + 0.0004114396686

Reorder the terms:
0.0004114396686 + 0.04056795132x + x2 = 0.0004262170385 + 0.0004114396686

Combine like terms: 0.0004262170385 + 0.0004114396686 = 0.0008376567071
0.0004114396686 + 0.04056795132x + x2 = 0.0008376567071

Factor a perfect square on the left side:
(x + 0.02028397566)(x + 0.02028397566) = 0.0008376567071

Calculate the square root of the right side: 0.0289423

Break this problem into two subproblems by setting 
(x + 0.02028397566) equal to 0.0289423 and -0.0289423.

Subproblem 1

x + 0.02028397566 = 0.0289423 Simplifying x + 0.02028397566 = 0.0289423 Reorder the terms: 0.02028397566 + x = 0.0289423 Solving 0.02028397566 + x = 0.0289423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.02028397566' to each side of the equation. 0.02028397566 + -0.02028397566 + x = 0.0289423 + -0.02028397566 Combine like terms: 0.02028397566 + -0.02028397566 = 0.00000000000 0.00000000000 + x = 0.0289423 + -0.02028397566 x = 0.0289423 + -0.02028397566 Combine like terms: 0.0289423 + -0.02028397566 = 0.00865832434 x = 0.00865832434 Simplifying x = 0.00865832434

Subproblem 2

x + 0.02028397566 = -0.0289423 Simplifying x + 0.02028397566 = -0.0289423 Reorder the terms: 0.02028397566 + x = -0.0289423 Solving 0.02028397566 + x = -0.0289423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.02028397566' to each side of the equation. 0.02028397566 + -0.02028397566 + x = -0.0289423 + -0.02028397566 Combine like terms: 0.02028397566 + -0.02028397566 = 0.00000000000 0.00000000000 + x = -0.0289423 + -0.02028397566 x = -0.0289423 + -0.02028397566 Combine like terms: -0.0289423 + -0.02028397566 = -0.04922627566 x = -0.04922627566 Simplifying x = -0.04922627566

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.00865832434, -0.04922627566}

See similar equations:

| X+.2(4)=.5(X+4) | | t+80=2t+45 | | 12y+5x+25+120=360 | | 0.25+0.075=0.1p | | 2(6s+9)-3s=3(3s+4)-13 | | t-80=2t-45 | | f(x+1)=5x-3 | | 7x+14=5x+12 | | 2/3-12x=18 | | (x+3)(5-x)(-x-1)=0 | | (2x+3)+(5y+2)=47 | | 5e=4o | | -3(3x+2)=-16-8x+9 | | 15/2/4 | | 2w^2=-7w+15 | | [1-(86/2917).6]*100 | | 2w^2=-7+15 | | 12x+3x-60=90 | | 8+10x-x^2=0 | | 0=65-10t-5t^2 | | 81-8y=-9 | | b=3b-62 | | 4x+5=5x-2findx | | 13-3.7= | | 3x-(5x+1)=0 | | -15-10=-14y+13 | | -5(-7)-3y=-20 | | 3y-5+y+51=7y+50-5y | | 1.5-2.5x=3 | | (2x-1)(3x+8)= | | w-1/2=-7/8 | | 2x+12+90+36=180 |

Equations solver categories