0=3x^2-3x-135

Simple and best practice solution for 0=3x^2-3x-135 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=3x^2-3x-135 equation:


Simplifying
0 = 3x2 + -3x + -135

Reorder the terms:
0 = -135 + -3x + 3x2

Solving
0 = -135 + -3x + 3x2

Solving for variable 'x'.

Combine like terms: 0 + 135 = 135
135 + 3x + -3x2 = -135 + -3x + 3x2 + 135 + 3x + -3x2

Reorder the terms:
135 + 3x + -3x2 = -135 + 135 + -3x + 3x + 3x2 + -3x2

Combine like terms: -135 + 135 = 0
135 + 3x + -3x2 = 0 + -3x + 3x + 3x2 + -3x2
135 + 3x + -3x2 = -3x + 3x + 3x2 + -3x2

Combine like terms: -3x + 3x = 0
135 + 3x + -3x2 = 0 + 3x2 + -3x2
135 + 3x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
135 + 3x + -3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(45 + x + -1x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(45 + x + -1x2)' equal to zero and attempt to solve: Simplifying 45 + x + -1x2 = 0 Solving 45 + x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -45 + -1x + x2 = 0 Move the constant term to the right: Add '45' to each side of the equation. -45 + -1x + 45 + x2 = 0 + 45 Reorder the terms: -45 + 45 + -1x + x2 = 0 + 45 Combine like terms: -45 + 45 = 0 0 + -1x + x2 = 0 + 45 -1x + x2 = 0 + 45 Combine like terms: 0 + 45 = 45 -1x + x2 = 45 The x term is x. 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 = 45 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 45 + 0.25 Combine like terms: 45 + 0.25 = 45.25 0.25 + -1x + x2 = 45.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 45.25 Calculate the square root of the right side: 6.726812024 Break this problem into two subproblems by setting (x + 0.5) equal to 6.726812024 and -6.726812024.

Subproblem 1

x + 0.5 = 6.726812024 Simplifying x + 0.5 = 6.726812024 Reorder the terms: 0.5 + x = 6.726812024 Solving 0.5 + x = 6.726812024 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 = 6.726812024 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 6.726812024 + -0.5 x = 6.726812024 + -0.5 Combine like terms: 6.726812024 + -0.5 = 6.226812024 x = 6.226812024 Simplifying x = 6.226812024

Subproblem 2

x + 0.5 = -6.726812024 Simplifying x + 0.5 = -6.726812024 Reorder the terms: 0.5 + x = -6.726812024 Solving 0.5 + x = -6.726812024 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 = -6.726812024 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -6.726812024 + -0.5 x = -6.726812024 + -0.5 Combine like terms: -6.726812024 + -0.5 = -7.226812024 x = -7.226812024 Simplifying x = -7.226812024

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.226812024, -7.226812024}

Solution

x = {6.226812024, -7.226812024}

See similar equations:

| 4x^2-6=11x | | -4=11+6c | | 5x+8+13=-2+18x | | 4y^2+11y-21=0 | | 4(29t^3-2t^2+930)=0 | | -4x+13=-6x+200 | | 180=x+70 | | -5(X-3)-23=-8 | | -(15a-6)= | | 7x+56-16x=93 | | 15+h=0 | | -4x-7=8x+15 | | x^2-11x+4=20 | | Y=11-5x-x^2 | | -7b-7=-43 | | 5(a-8)+17=2(a-4) | | 9x-65=4x | | 5c+4.6=6.2c-7.16 | | 5m-12p-4mp+15= | | 180=x-30 | | 8x^2+X=30 | | a^3-5a^2+16=0 | | 18n+45=445 | | 5(4-x)=-5+20 | | l+(-12)=156 | | (x+2)+10=12 | | 8a-2.5=5a-5.8 | | 9x+8-6(x+1)=8x+6 | | -8-n=.3(2n-4) | | X^2-kx+k-1=0 | | 80x+75y=3500 | | -58=-17t |

Equations solver categories