0=.0001x^2+.07x-1.6

Simple and best practice solution for 0=.0001x^2+.07x-1.6 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 0=.0001x^2+.07x-1.6 equation:


Simplifying
0 = 0.0001x2 + 0.07x + -1.6

Reorder the terms:
0 = -1.6 + 0.07x + 0.0001x2

Solving
0 = -1.6 + 0.07x + 0.0001x2

Solving for variable 'x'.

Combine like terms: 0 + 1.6 = 1.6
1.6 + -0.07x + -0.0001x2 = -1.6 + 0.07x + 0.0001x2 + 1.6 + -0.07x + -0.0001x2

Reorder the terms:
1.6 + -0.07x + -0.0001x2 = -1.6 + 1.6 + 0.07x + -0.07x + 0.0001x2 + -0.0001x2

Combine like terms: -1.6 + 1.6 = 0.0
1.6 + -0.07x + -0.0001x2 = 0.0 + 0.07x + -0.07x + 0.0001x2 + -0.0001x2
1.6 + -0.07x + -0.0001x2 = 0.07x + -0.07x + 0.0001x2 + -0.0001x2

Combine like terms: 0.07x + -0.07x = 0.00
1.6 + -0.07x + -0.0001x2 = 0.00 + 0.0001x2 + -0.0001x2
1.6 + -0.07x + -0.0001x2 = 0.0001x2 + -0.0001x2

Combine like terms: 0.0001x2 + -0.0001x2 = 0.0000
1.6 + -0.07x + -0.0001x2 = 0.0000

Begin completing the square.  Divide all terms by
-0.0001 the coefficient of the squared term: 

Divide each side by '-0.0001'.
-16000 + 700x + x2 = 0

Move the constant term to the right:

Add '16000' to each side of the equation.
-16000 + 700x + 16000 + x2 = 0 + 16000

Reorder the terms:
-16000 + 16000 + 700x + x2 = 0 + 16000

Combine like terms: -16000 + 16000 = 0
0 + 700x + x2 = 0 + 16000
700x + x2 = 0 + 16000

Combine like terms: 0 + 16000 = 16000
700x + x2 = 16000

The x term is 700x.  Take half its coefficient (350).
Square it (122500) and add it to both sides.

Add '122500' to each side of the equation.
700x + 122500 + x2 = 16000 + 122500

Reorder the terms:
122500 + 700x + x2 = 16000 + 122500

Combine like terms: 16000 + 122500 = 138500
122500 + 700x + x2 = 138500

Factor a perfect square on the left side:
(x + 350)(x + 350) = 138500

Calculate the square root of the right side: 372.155881319

Break this problem into two subproblems by setting 
(x + 350) equal to 372.155881319 and -372.155881319.

Subproblem 1

x + 350 = 372.155881319 Simplifying x + 350 = 372.155881319 Reorder the terms: 350 + x = 372.155881319 Solving 350 + x = 372.155881319 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-350' to each side of the equation. 350 + -350 + x = 372.155881319 + -350 Combine like terms: 350 + -350 = 0 0 + x = 372.155881319 + -350 x = 372.155881319 + -350 Combine like terms: 372.155881319 + -350 = 22.155881319 x = 22.155881319 Simplifying x = 22.155881319

Subproblem 2

x + 350 = -372.155881319 Simplifying x + 350 = -372.155881319 Reorder the terms: 350 + x = -372.155881319 Solving 350 + x = -372.155881319 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-350' to each side of the equation. 350 + -350 + x = -372.155881319 + -350 Combine like terms: 350 + -350 = 0 0 + x = -372.155881319 + -350 x = -372.155881319 + -350 Combine like terms: -372.155881319 + -350 = -722.155881319 x = -722.155881319 Simplifying x = -722.155881319

Solution

The solution to the problem is based on the solutions from the subproblems. x = {22.155881319, -722.155881319}

See similar equations:

| P(x)=7x^2+6x-2 | | -3-(n-1)-2(n-2)=-3+(n-2)+4 | | 12(3x-2)=28 | | 4x(3x+1)(x-1)= | | 3x^2=2-8x | | 2+7=57 | | 3(x-2)-9x+2(3x+7)-8=0 | | x+(.16)x=17.4 | | ln(10*x)=x | | 175=60+(15+9)w | | 6x^2(3x-2)=28 | | 4x+8=18+2x | | 4=2/5(4y-2) | | -13/20x=3 | | 2m^2=50m | | 60+(15+9)w=175 | | 0.16x+0.8(x-1)=0.01(4x-2) | | 2=5+2(7b-1) | | 8x^2-8x-16+7x+14-5x+5=0 | | 10-3t=-11 | | 7x-6=5x+-10 | | -8(x+4)+3x+7=6x+11 | | exp(x)=10 | | 6x+20=4x+34 | | x-.43x+.28=.71(x+.75) | | y-5+3(2y+3)=-7(y+2) | | 4x+34=6x+20 | | 2/2=Z/15 | | 4m-8+m=9+5m-17 | | 7m+150=255 | | 3-4x/6-2x-3/8=2x | | 5x-15-2x=6 |

Equations solver categories