0=x^2-3x-146

Simple and best practice solution for 0=x^2-3x-146 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=x^2-3x-146 equation:


Simplifying
0 = x2 + -3x + -146

Reorder the terms:
0 = -146 + -3x + x2

Solving
0 = -146 + -3x + x2

Solving for variable 'x'.

Combine like terms: 0 + 146 = 146
146 + 3x + -1x2 = -146 + -3x + x2 + 146 + 3x + -1x2

Reorder the terms:
146 + 3x + -1x2 = -146 + 146 + -3x + 3x + x2 + -1x2

Combine like terms: -146 + 146 = 0
146 + 3x + -1x2 = 0 + -3x + 3x + x2 + -1x2
146 + 3x + -1x2 = -3x + 3x + x2 + -1x2

Combine like terms: -3x + 3x = 0
146 + 3x + -1x2 = 0 + x2 + -1x2
146 + 3x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
146 + 3x + -1x2 = 0

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

Divide each side by '-1'.
-146 + -3x + x2 = 0

Move the constant term to the right:

Add '146' to each side of the equation.
-146 + -3x + 146 + x2 = 0 + 146

Reorder the terms:
-146 + 146 + -3x + x2 = 0 + 146

Combine like terms: -146 + 146 = 0
0 + -3x + x2 = 0 + 146
-3x + x2 = 0 + 146

Combine like terms: 0 + 146 = 146
-3x + x2 = 146

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 146 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 146 + 2.25

Combine like terms: 146 + 2.25 = 148.25
2.25 + -3x + x2 = 148.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 148.25

Calculate the square root of the right side: 12.175795662

Break this problem into two subproblems by setting 
(x + -1.5) equal to 12.175795662 and -12.175795662.

Subproblem 1

x + -1.5 = 12.175795662 Simplifying x + -1.5 = 12.175795662 Reorder the terms: -1.5 + x = 12.175795662 Solving -1.5 + x = 12.175795662 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 12.175795662 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 12.175795662 + 1.5 x = 12.175795662 + 1.5 Combine like terms: 12.175795662 + 1.5 = 13.675795662 x = 13.675795662 Simplifying x = 13.675795662

Subproblem 2

x + -1.5 = -12.175795662 Simplifying x + -1.5 = -12.175795662 Reorder the terms: -1.5 + x = -12.175795662 Solving -1.5 + x = -12.175795662 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -12.175795662 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -12.175795662 + 1.5 x = -12.175795662 + 1.5 Combine like terms: -12.175795662 + 1.5 = -10.675795662 x = -10.675795662 Simplifying x = -10.675795662

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.675795662, -10.675795662}

See similar equations:

| 2(4a+3)=102 | | 3(2x-3y)=4(1-2y) | | 7z-3y=-4 | | 312-38=274 | | X+(x-12)=146.5 | | 312+38=350 | | x(x+1)(x+7)(x+8)=y^2 | | -40+x=-8 | | 48v+18=18-8v | | 100x+2=-8 | | 4n+19=-15n | | 12x+7y=-14 | | 7+9n=4n-3 | | -10=-14+8x | | 23+-4x=8+-7x | | 12x+9(10-x)=111 | | 7x-3=-x+5 | | Squrt(4x-3)=squrt(9+x) | | S-3=2s+6 | | 2+p=77 | | 40a^2+19a-3= | | 6(u-85)=66 | | 8(t+2)=56 | | 7=2s-11 | | 4n-10=2 | | 10-3r=4 | | 4c+9y=72 | | (10x)-6=24 | | -7x+2=x-14 | | Y=268 | | ln(4-2x)=0 | | Y=256+12 |

Equations solver categories