3x+4x^2=116

Simple and best practice solution for 3x+4x^2=116 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+4x^2=116 equation:


Simplifying
3x + 4x2 = 116

Solving
3x + 4x2 = 116

Solving for variable 'x'.

Reorder the terms:
-116 + 3x + 4x2 = 116 + -116

Combine like terms: 116 + -116 = 0
-116 + 3x + 4x2 = 0

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

Divide each side by '4'.
-29 + 0.75x + x2 = 0

Move the constant term to the right:

Add '29' to each side of the equation.
-29 + 0.75x + 29 + x2 = 0 + 29

Reorder the terms:
-29 + 29 + 0.75x + x2 = 0 + 29

Combine like terms: -29 + 29 = 0
0 + 0.75x + x2 = 0 + 29
0.75x + x2 = 0 + 29

Combine like terms: 0 + 29 = 29
0.75x + x2 = 29

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = 29 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = 29 + 0.140625

Combine like terms: 29 + 0.140625 = 29.140625
0.140625 + 0.75x + x2 = 29.140625

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = 29.140625

Calculate the square root of the right side: 5.39820572

Break this problem into two subproblems by setting 
(x + 0.375) equal to 5.39820572 and -5.39820572.

Subproblem 1

x + 0.375 = 5.39820572 Simplifying x + 0.375 = 5.39820572 Reorder the terms: 0.375 + x = 5.39820572 Solving 0.375 + x = 5.39820572 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = 5.39820572 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = 5.39820572 + -0.375 x = 5.39820572 + -0.375 Combine like terms: 5.39820572 + -0.375 = 5.02320572 x = 5.02320572 Simplifying x = 5.02320572

Subproblem 2

x + 0.375 = -5.39820572 Simplifying x + 0.375 = -5.39820572 Reorder the terms: 0.375 + x = -5.39820572 Solving 0.375 + x = -5.39820572 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = -5.39820572 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = -5.39820572 + -0.375 x = -5.39820572 + -0.375 Combine like terms: -5.39820572 + -0.375 = -5.77320572 x = -5.77320572 Simplifying x = -5.77320572

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.02320572, -5.77320572}

See similar equations:

| 3x+4x*2=116 | | 7y+8=29 | | x^2+10x+53= | | 17r+4=34r+2 | | 5(1.5x)+40x=596 | | (1.5x+5)+40x=596 | | 6x-3+5x=11+4 | | r^3-2r^2-8r=0 | | d+18=7d+6 | | -2x*5=2 | | 3x=9(4-x) | | x*3=33 | | 5(m+3)=45 | | 4x+3-2x=12 | | d/7=12+7 | | -8+1=-5x-2 | | 8x*2=24 | | 7+3x=5x-2 | | x^3-x^2-17x+1=0 | | 4x+5=4(x+4) | | 7-(x+8)=4x-6 | | 12x^3-25x^2+16x-3=0 | | 2x^2+4x+34=0 | | 4(6z-1)-2(z+1)=3(z+1) | | 3t+4=19 | | 21-y=87+2y | | 18x-25x=.5 | | 12-3(4-x)2+1=30+(4-x)3 | | (5y-6)(5y+6)= | | (2x+1)(2x-1)= | | x^2+4x+a^2-3a=0 | | 2x(4x^2+3x-5)=y |

Equations solver categories