q^2-3=q

Simple and best practice solution for q^2-3=q 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 q^2-3=q equation:


Simplifying
q2 + -3 = q

Reorder the terms:
-3 + q2 = q

Solving
-3 + q2 = q

Solving for variable 'q'.

Reorder the terms:
-3 + -1q + q2 = q + -1q

Combine like terms: q + -1q = 0
-3 + -1q + q2 = 0

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -1q + 3 + q2 = 0 + 3

Reorder the terms:
-3 + 3 + -1q + q2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -1q + q2 = 0 + 3
-1q + q2 = 0 + 3

Combine like terms: 0 + 3 = 3
-1q + q2 = 3

The q term is -1q.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1q + 0.25 + q2 = 3 + 0.25

Reorder the terms:
0.25 + -1q + q2 = 3 + 0.25

Combine like terms: 3 + 0.25 = 3.25
0.25 + -1q + q2 = 3.25

Factor a perfect square on the left side:
(q + -0.5)(q + -0.5) = 3.25

Calculate the square root of the right side: 1.802775638

Break this problem into two subproblems by setting 
(q + -0.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

q + -0.5 = 1.802775638 Simplifying q + -0.5 = 1.802775638 Reorder the terms: -0.5 + q = 1.802775638 Solving -0.5 + q = 1.802775638 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + q = 1.802775638 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + q = 1.802775638 + 0.5 q = 1.802775638 + 0.5 Combine like terms: 1.802775638 + 0.5 = 2.302775638 q = 2.302775638 Simplifying q = 2.302775638

Subproblem 2

q + -0.5 = -1.802775638 Simplifying q + -0.5 = -1.802775638 Reorder the terms: -0.5 + q = -1.802775638 Solving -0.5 + q = -1.802775638 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + q = -1.802775638 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + q = -1.802775638 + 0.5 q = -1.802775638 + 0.5 Combine like terms: -1.802775638 + 0.5 = -1.302775638 q = -1.302775638 Simplifying q = -1.302775638

Solution

The solution to the problem is based on the solutions from the subproblems. q = {2.302775638, -1.302775638}

See similar equations:

| 6c^2-72-11u=0 | | 3s-20=-24+s | | -1/8x=27 | | 9s+13= | | 4-4z-15z^2= | | n-57/8=61/7 | | 5e^3x-1=53 | | 3x-16=4x+7 | | 5y+3y-11y-6x=30 | | 1.19x=8.33 | | 8(54x)=10 | | 4x+-6=26 | | 8/3÷1/3 | | 2ln(x-1)=7 | | 2x+(x+10)+x=82 | | 4(4t-7)= | | -0.7x+2.41=-0.9x+0.21 | | 25/670=x | | P=2a-3 | | z=2x^2+xy^2+5x^2+y^2 | | 10*tan^2(x)-4=1 | | 5m+3(m-5)=-2(m+3) | | -0.7+2.41=-0.9x+0.21 | | BT+2=2T+5 | | (4y-8)(3y-7)=0 | | 4=-3d+37 | | 4m-3=9-2m | | 10tan^2x-4=1 | | 7[6-(1+2x)]+10x=2(10-3x)+8x | | x+0.16(60)=0.40(60+x) | | n*x-r=p | | 2x-20=6x+5 |

Equations solver categories