3x^2+3x-38=0

Simple and best practice solution for 3x^2+3x-38=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-38=0 equation:


Simplifying
3x2 + 3x + -38 = 0

Reorder the terms:
-38 + 3x + 3x2 = 0

Solving
-38 + 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'.
-12.66666667 + x + x2 = 0

Move the constant term to the right:

Add '12.66666667' to each side of the equation.
-12.66666667 + x + 12.66666667 + x2 = 0 + 12.66666667

Reorder the terms:
-12.66666667 + 12.66666667 + x + x2 = 0 + 12.66666667

Combine like terms: -12.66666667 + 12.66666667 = 0.00000000
0.00000000 + x + x2 = 0 + 12.66666667
x + x2 = 0 + 12.66666667

Combine like terms: 0 + 12.66666667 = 12.66666667
x + x2 = 12.66666667

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.
 + 0.25 + x2 = 12.66666667 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 12.66666667 + 0.25

Combine like terms: 12.66666667 + 0.25 = 12.91666667
1.25 + x2 = 12.91666667

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 12.91666667

Calculate the square root of the right side: 3.593976443

Break this problem into two subproblems by setting 
(x + 0.5) equal to 3.593976443 and -3.593976443.

Subproblem 1

x + 0.5 = 3.593976443 Simplifying x + 0.5 = 3.593976443 Reorder the terms: 0.5 + x = 3.593976443 Solving 0.5 + x = 3.593976443 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 = 3.593976443 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 3.593976443 + -0.5 x = 3.593976443 + -0.5 Combine like terms: 3.593976443 + -0.5 = 3.093976443 x = 3.093976443 Simplifying x = 3.093976443

Subproblem 2

x + 0.5 = -3.593976443 Simplifying x + 0.5 = -3.593976443 Reorder the terms: 0.5 + x = -3.593976443 Solving 0.5 + x = -3.593976443 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 = -3.593976443 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -3.593976443 + -0.5 x = -3.593976443 + -0.5 Combine like terms: -3.593976443 + -0.5 = -4.093976443 x = -4.093976443 Simplifying x = -4.093976443

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.093976443, -4.093976443}

See similar equations:

| h+11=5-h | | x+15=94 | | 18x^2-5x=0 | | 14-6x=-6+4x | | b^2+20b+36=0 | | 48=x^2-3x | | 2x-2=x-1 | | 4(c+11)=2c+18 | | 3(m-2)=45 | | -2lx-1l+10=-4 | | 57+x+x-24=180 | | 3b-7(3+b)=b+3 | | x+3x+x-4=76 | | 18+8y=7-3y | | 3x-7=11+5x | | 2x+48+x=180 | | 5y+4=4y-8 | | 200=6x^2+8xh | | =6x^2+8xh | | -9+4x=-85 | | 82+x+x=180 | | A=6x^2+8xh | | w(w+3)=28 | | -9(2b+4)+(19b-6)=0 | | 2-0.5(f-9)=0.8(f-9) | | 16-5(3t-4)=8(-2t+12) | | -2(x+3)=4x+3 | | 8x-3y=24-5y | | 0.20(24)-0.05x=0.10(24+x) | | x(x+4)+x(x+2)=2x+12 | | 0.3(n-18)=0.9n | | 0.7y-0.5y=6.6 |

Equations solver categories