2x^2+19x-27=0

Simple and best practice solution for 2x^2+19x-27=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+19x-27=0 equation:


Simplifying
2x2 + 19x + -27 = 0

Reorder the terms:
-27 + 19x + 2x2 = 0

Solving
-27 + 19x + 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'.
-13.5 + 9.5x + x2 = 0

Move the constant term to the right:

Add '13.5' to each side of the equation.
-13.5 + 9.5x + 13.5 + x2 = 0 + 13.5

Reorder the terms:
-13.5 + 13.5 + 9.5x + x2 = 0 + 13.5

Combine like terms: -13.5 + 13.5 = 0.0
0.0 + 9.5x + x2 = 0 + 13.5
9.5x + x2 = 0 + 13.5

Combine like terms: 0 + 13.5 = 13.5
9.5x + x2 = 13.5

The x term is 9.5x.  Take half its coefficient (4.75).
Square it (22.5625) and add it to both sides.

Add '22.5625' to each side of the equation.
9.5x + 22.5625 + x2 = 13.5 + 22.5625

Reorder the terms:
22.5625 + 9.5x + x2 = 13.5 + 22.5625

Combine like terms: 13.5 + 22.5625 = 36.0625
22.5625 + 9.5x + x2 = 36.0625

Factor a perfect square on the left side:
(x + 4.75)(x + 4.75) = 36.0625

Calculate the square root of the right side: 6.005206075

Break this problem into two subproblems by setting 
(x + 4.75) equal to 6.005206075 and -6.005206075.

Subproblem 1

x + 4.75 = 6.005206075 Simplifying x + 4.75 = 6.005206075 Reorder the terms: 4.75 + x = 6.005206075 Solving 4.75 + x = 6.005206075 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.75' to each side of the equation. 4.75 + -4.75 + x = 6.005206075 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = 6.005206075 + -4.75 x = 6.005206075 + -4.75 Combine like terms: 6.005206075 + -4.75 = 1.255206075 x = 1.255206075 Simplifying x = 1.255206075

Subproblem 2

x + 4.75 = -6.005206075 Simplifying x + 4.75 = -6.005206075 Reorder the terms: 4.75 + x = -6.005206075 Solving 4.75 + x = -6.005206075 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.75' to each side of the equation. 4.75 + -4.75 + x = -6.005206075 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = -6.005206075 + -4.75 x = -6.005206075 + -4.75 Combine like terms: -6.005206075 + -4.75 = -10.755206075 x = -10.755206075 Simplifying x = -10.755206075

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.255206075, -10.755206075}

See similar equations:

| 5x-8=88-7x | | 5/6*x=10 | | 13(v+4)-4v=3(3v+2)-15 | | 5+2r-4=6r+4-3r | | -25x^3+26x^2-1=0 | | 8-8x-6-2x=4 | | 3x^2-19+6=0 | | 31010=x+0.08x | | 6[2-(2x-2)]=2(6-3x) | | 21559=x+0.06x | | 72x^2-37x-24=0 | | 8(v+1)-2v=2(3v+4)-11 | | 15-(5m+8)=2+4m-13 | | 3q^2+3q+36=0 | | 3/2x+1/5x+11/6x-2/15 | | 57032=x+0.08x | | 15-(5m-8)=2+4m-13 | | 16c^2+40c+25d^2=0 | | 36x2/6/3 | | 8+11x-7=6x+37-4x | | 3m+2=4m-4 | | (2x+4)+(7x-7)=8x | | 30390=x+0.06x | | 15=6x-4 | | 6-200/x^2=0 | | -4/5=-1/6-3/4q | | 3x/5+5x/6=x+7/8 | | 1/2r+1/3r=5 | | 2(W+7)(W-3)=W^2+7W+168 | | -5s^2+15s+1=0 | | 3/7y+2/5=-1/5 | | 2847=x+0.08x |

Equations solver categories