3x^2-3x-49=0

Simple and best practice solution for 3x^2-3x-49=0 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 3x^2-3x-49=0 equation:


Simplifying
3x2 + -3x + -49 = 0

Reorder the terms:
-49 + -3x + 3x2 = 0

Solving
-49 + -3x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-16.33333333 + -1x + x2 = 0

Move the constant term to the right:

Add '16.33333333' to each side of the equation.
-16.33333333 + -1x + 16.33333333 + x2 = 0 + 16.33333333

Reorder the terms:
-16.33333333 + 16.33333333 + -1x + x2 = 0 + 16.33333333

Combine like terms: -16.33333333 + 16.33333333 = 0.00000000
0.00000000 + -1x + x2 = 0 + 16.33333333
-1x + x2 = 0 + 16.33333333

Combine like terms: 0 + 16.33333333 = 16.33333333
-1x + x2 = 16.33333333

The x term is -1x.  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.
-1x + 0.25 + x2 = 16.33333333 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 16.33333333 + 0.25

Combine like terms: 16.33333333 + 0.25 = 16.58333333
0.25 + -1x + x2 = 16.58333333

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 16.58333333

Calculate the square root of the right side: 4.072263907

Break this problem into two subproblems by setting 
(x + -0.5) equal to 4.072263907 and -4.072263907.

Subproblem 1

x + -0.5 = 4.072263907 Simplifying x + -0.5 = 4.072263907 Reorder the terms: -0.5 + x = 4.072263907 Solving -0.5 + x = 4.072263907 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 4.072263907 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 4.072263907 + 0.5 x = 4.072263907 + 0.5 Combine like terms: 4.072263907 + 0.5 = 4.572263907 x = 4.572263907 Simplifying x = 4.572263907

Subproblem 2

x + -0.5 = -4.072263907 Simplifying x + -0.5 = -4.072263907 Reorder the terms: -0.5 + x = -4.072263907 Solving -0.5 + x = -4.072263907 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -4.072263907 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -4.072263907 + 0.5 x = -4.072263907 + 0.5 Combine like terms: -4.072263907 + 0.5 = -3.572263907 x = -3.572263907 Simplifying x = -3.572263907

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.572263907, -3.572263907}

See similar equations:

| y+2=5y-4+3y-1 | | 5x^5+5000x^2=0 | | 3t^2+19=0 | | 4x-10=-87-7x | | 4x^2-13x-9= | | 0=3v^2-72 | | (6x+7)(3x-10)= | | x/4-4 | | 18+c=8 | | p+6=-5 | | -6(2x-1)-(3x+5)=31 | | 2x(x+3)+5(x+3)=0 | | 12m+2n-5m+8n= | | 3st+2su-4sv= | | 5-x=2x-31 | | 2v^2+6=102 | | 42=8j+13j | | 2y-13=-19 | | 1/(2sin(2x)) | | 4x-10=-11+3x | | 3p+pq-4pr= | | -3(2b+1)+(7b-2)=0 | | 8n+6(1-n)2(1+n)=4 | | -6r+5(-3+6r)=39+6r | | w+4w=20 | | 5x+6x-54=72-7x | | -2x+8=6-(9x+7) | | 4x+7=41-4x | | 7(2y-1)+3y=-3(y+2)+3 | | x+4(x-13)=17 | | 2(2x-4)+x=16-x | | (9b-9)-4(2b+3)=-4 |

Equations solver categories