250-Q^2=4Q

Simple and best practice solution for 250-Q^2=4Q 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 250-Q^2=4Q equation:


Simplifying
250 + -1Q2 = 4Q

Solving
250 + -1Q2 = 4Q

Solving for variable 'Q'.

Reorder the terms:
250 + -4Q + -1Q2 = 4Q + -4Q

Combine like terms: 4Q + -4Q = 0
250 + -4Q + -1Q2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-250 + 4Q + Q2 = 0

Move the constant term to the right:

Add '250' to each side of the equation.
-250 + 4Q + 250 + Q2 = 0 + 250

Reorder the terms:
-250 + 250 + 4Q + Q2 = 0 + 250

Combine like terms: -250 + 250 = 0
0 + 4Q + Q2 = 0 + 250
4Q + Q2 = 0 + 250

Combine like terms: 0 + 250 = 250
4Q + Q2 = 250

The Q term is 4Q.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4Q + 4 + Q2 = 250 + 4

Reorder the terms:
4 + 4Q + Q2 = 250 + 4

Combine like terms: 250 + 4 = 254
4 + 4Q + Q2 = 254

Factor a perfect square on the left side:
(Q + 2)(Q + 2) = 254

Calculate the square root of the right side: 15.937377451

Break this problem into two subproblems by setting 
(Q + 2) equal to 15.937377451 and -15.937377451.

Subproblem 1

Q + 2 = 15.937377451 Simplifying Q + 2 = 15.937377451 Reorder the terms: 2 + Q = 15.937377451 Solving 2 + Q = 15.937377451 Solving for variable 'Q'. Move all terms containing Q to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + Q = 15.937377451 + -2 Combine like terms: 2 + -2 = 0 0 + Q = 15.937377451 + -2 Q = 15.937377451 + -2 Combine like terms: 15.937377451 + -2 = 13.937377451 Q = 13.937377451 Simplifying Q = 13.937377451

Subproblem 2

Q + 2 = -15.937377451 Simplifying Q + 2 = -15.937377451 Reorder the terms: 2 + Q = -15.937377451 Solving 2 + Q = -15.937377451 Solving for variable 'Q'. Move all terms containing Q to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + Q = -15.937377451 + -2 Combine like terms: 2 + -2 = 0 0 + Q = -15.937377451 + -2 Q = -15.937377451 + -2 Combine like terms: -15.937377451 + -2 = -17.937377451 Q = -17.937377451 Simplifying Q = -17.937377451

Solution

The solution to the problem is based on the solutions from the subproblems. Q = {13.937377451, -17.937377451}

See similar equations:

| 8(w+8)-(2+6w)=w | | 1/138(11x+9x)-13=19/345x | | 390/(5(7+6)) | | 1/3-19/(4x)=1/4-1/6x | | 7x+8-3=12 | | 3(2x-1)+(3/2)(3x+4)=1-4x | | 6/(x+7)=8/x | | 3x^2-8=40 | | -3+8=27 | | 0.03(x-6)+0.02(x-4)=5.24 | | 10n+3(8+8n)=6n(n-4) | | 2x+x-3=45 | | X-1=-1+3x | | 19+5-8*4/2= | | 2x^4+11x^2+15=o | | 6/x+7=8/x | | 8-7k+3=-10 | | -1(4x-5)=x | | 2(x-8)+7=5(x+2)-3x-1 | | 4f+g=-2f-14 | | (x^2-2x-8)/(x^3+x^2-2x) | | 2.5y+7.5y=4.2 | | 4f+h=-2g-14 | | B-38=-79 | | x^2+2x-1= | | 7(6x-1)+6(-6x+8)= | | 6[4(2x-1)]=80-8 | | 5(-7+x)=5 | | 2/9*x-4=28 | | 22=p-2+7p | | (12+m)+4= | | 4v+4k+n=s |

Equations solver categories