7=(.006x^2)-.02x

Simple and best practice solution for 7=(.006x^2)-.02x 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 7=(.006x^2)-.02x equation:


Simplifying
7 = (0.006x2) + -0.02x

Reorder the terms:
7 = -0.02x + (0.006x2)

Solving
7 = -0.02x + (0.006x2)

Solving for variable 'x'.

Reorder the terms:
7 + 0.02x + (-0.006x2) = -0.02x + 0.02x + (0.006x2) + (-0.006x2)

Combine like terms: -0.02x + 0.02x = 0.00
7 + 0.02x + (-0.006x2) = 0.00 + (0.006x2) + (-0.006x2)
7 + 0.02x + (-0.006x2) = (0.006x2) + (-0.006x2)

Combine like terms: (0.006x2) + (-0.006x2) = 0.000
7 + 0.02x + (-0.006x2) = 0.000

Begin completing the square.  Divide all terms by
-0.006 the coefficient of the squared term: 

Divide each side by '-0.006'.
-1166.666667 + -3.333333333x + x2 = 0

Move the constant term to the right:

Add '1166.666667' to each side of the equation.
-1166.666667 + -3.333333333x + 1166.666667 + x2 = 0 + 1166.666667

Reorder the terms:
-1166.666667 + 1166.666667 + -3.333333333x + x2 = 0 + 1166.666667

Combine like terms: -1166.666667 + 1166.666667 = 0.000000
0.000000 + -3.333333333x + x2 = 0 + 1166.666667
-3.333333333x + x2 = 0 + 1166.666667

Combine like terms: 0 + 1166.666667 = 1166.666667
-3.333333333x + x2 = 1166.666667

The x term is -3.333333333x.  Take half its coefficient (-1.666666667).
Square it (2.777777779) and add it to both sides.

Add '2.777777779' to each side of the equation.
-3.333333333x + 2.777777779 + x2 = 1166.666667 + 2.777777779

Reorder the terms:
2.777777779 + -3.333333333x + x2 = 1166.666667 + 2.777777779

Combine like terms: 1166.666667 + 2.777777779 = 1169.444444779
2.777777779 + -3.333333333x + x2 = 1169.444444779

Factor a perfect square on the left side:
((x) + -1.666666667)((x) + -1.666666667) = 1169.444444779

Calculate the square root of the right side: 34.197140886

Break this problem into two subproblems by setting 
((x) + -1.666666667) equal to 34.197140886 and -34.197140886.

Subproblem 1

(x) + -1.666666667 = 34.197140886 Simplifying (x) + -1.666666667 = 34.197140886 x + -1.666666667 = 34.197140886 Reorder the terms: -1.666666667 + x = 34.197140886 Solving -1.666666667 + x = 34.197140886 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.666666667' to each side of the equation. -1.666666667 + 1.666666667 + x = 34.197140886 + 1.666666667 Combine like terms: -1.666666667 + 1.666666667 = 0.000000000 0.000000000 + x = 34.197140886 + 1.666666667 x = 34.197140886 + 1.666666667 Combine like terms: 34.197140886 + 1.666666667 = 35.863807553 x = 35.863807553 Simplifying x = 35.863807553

Subproblem 2

(x) + -1.666666667 = -34.197140886 Simplifying (x) + -1.666666667 = -34.197140886 x + -1.666666667 = -34.197140886 Reorder the terms: -1.666666667 + x = -34.197140886 Solving -1.666666667 + x = -34.197140886 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.666666667' to each side of the equation. -1.666666667 + 1.666666667 + x = -34.197140886 + 1.666666667 Combine like terms: -1.666666667 + 1.666666667 = 0.000000000 0.000000000 + x = -34.197140886 + 1.666666667 x = -34.197140886 + 1.666666667 Combine like terms: -34.197140886 + 1.666666667 = -32.530474219 x = -32.530474219 Simplifying x = -32.530474219

Solution

The solution to the problem is based on the solutions from the subproblems. x = {35.863807553, -32.530474219}

See similar equations:

| 2-x-5=-3 | | 7(6y-3)-(2y+5)= | | 3x+8=2[x-3] | | 13/25÷3/7 | | 2.6x-11.58=7.4 | | (8+y)(4y-2)=0 | | 160/2 | | 5/x^2-(43/x)=18 | | 3-2t+3=10 | | -4(4x-1)=-156 | | 0.06x=144 | | dp+g=x | | Y+3x=11 | | p(x)=2x-7 | | 4x+5y=84 | | -15x-19=-21 | | X=7+x | | 3/4x-1/2=-4/5x-8 | | ((1/3)s^2)(.5s) | | 1/3s^2(1/2s) | | 9+(15+3)= | | (2+a)30=45(a) | | (2x+4)2=64 | | 49-36y^2=0 | | 63+3y=-6y | | 13x-65y+13=11x | | 7sin(4x)=6 | | 99x-43+12y=13 | | 1.8=lg(2-x) | | 4/7•1/2 | | 41.1+X=68 | | 8x+12=76 |

Equations solver categories