2x^2+83x+354=0

Simple and best practice solution for 2x^2+83x+354=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 2x^2+83x+354=0 equation:


Simplifying
2x2 + 83x + 354 = 0

Reorder the terms:
354 + 83x + 2x2 = 0

Solving
354 + 83x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
177 + 41.5x + x2 = 0

Move the constant term to the right:

Add '-177' to each side of the equation.
177 + 41.5x + -177 + x2 = 0 + -177

Reorder the terms:
177 + -177 + 41.5x + x2 = 0 + -177

Combine like terms: 177 + -177 = 0
0 + 41.5x + x2 = 0 + -177
41.5x + x2 = 0 + -177

Combine like terms: 0 + -177 = -177
41.5x + x2 = -177

The x term is 41.5x.  Take half its coefficient (20.75).
Square it (430.5625) and add it to both sides.

Add '430.5625' to each side of the equation.
41.5x + 430.5625 + x2 = -177 + 430.5625

Reorder the terms:
430.5625 + 41.5x + x2 = -177 + 430.5625

Combine like terms: -177 + 430.5625 = 253.5625
430.5625 + 41.5x + x2 = 253.5625

Factor a perfect square on the left side:
(x + 20.75)(x + 20.75) = 253.5625

Calculate the square root of the right side: 15.923645939

Break this problem into two subproblems by setting 
(x + 20.75) equal to 15.923645939 and -15.923645939.

Subproblem 1

x + 20.75 = 15.923645939 Simplifying x + 20.75 = 15.923645939 Reorder the terms: 20.75 + x = 15.923645939 Solving 20.75 + x = 15.923645939 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20.75' to each side of the equation. 20.75 + -20.75 + x = 15.923645939 + -20.75 Combine like terms: 20.75 + -20.75 = 0.00 0.00 + x = 15.923645939 + -20.75 x = 15.923645939 + -20.75 Combine like terms: 15.923645939 + -20.75 = -4.826354061 x = -4.826354061 Simplifying x = -4.826354061

Subproblem 2

x + 20.75 = -15.923645939 Simplifying x + 20.75 = -15.923645939 Reorder the terms: 20.75 + x = -15.923645939 Solving 20.75 + x = -15.923645939 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20.75' to each side of the equation. 20.75 + -20.75 + x = -15.923645939 + -20.75 Combine like terms: 20.75 + -20.75 = 0.00 0.00 + x = -15.923645939 + -20.75 x = -15.923645939 + -20.75 Combine like terms: -15.923645939 + -20.75 = -36.673645939 x = -36.673645939 Simplifying x = -36.673645939

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.826354061, -36.673645939}

See similar equations:

| x=12-4y | | 4y+2=12 | | P=2A+3B | | 5n+m+13-2n+5m+6= | | 7e^2x+2.5=20 | | 3r*r=27 | | 2x^2-27x+96=0 | | -3y(2y+4)= | | 2x+12=110-5x | | x-1.6=-6 | | 9x^2+3x=2 | | 4x+7y=12 | | 13y=(12+z)w | | 6x-7=5x+10 | | 5x+3y=22 | | 12x^2=2x+4 | | 3x^2-10=12-31x | | 6x^2-24=y | | 6x=4-18x^2 | | h=-5t^2+6t+3 | | 3x^2+6x=24 | | 3x^2=-2x | | 3x-13=-1 | | x-7.9=-4.4 | | X^2+120=-22x | | 28=4x-12 | | (-6)+x=49 | | x^2-16x+65=0 | | 7.52-s=2.9 | | 0=4x^2+95x-30 | | 2x+3y=6Y | | -9x+13=94 |

Equations solver categories