x^2+2x-3+x^2+3x-8=180

Simple and best practice solution for x^2+2x-3+x^2+3x-8=180 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 x^2+2x-3+x^2+3x-8=180 equation:


Simplifying
x2 + 2x + -3 + x2 + 3x + -8 = 180

Reorder the terms:
-3 + -8 + 2x + 3x + x2 + x2 = 180

Combine like terms: -3 + -8 = -11
-11 + 2x + 3x + x2 + x2 = 180

Combine like terms: 2x + 3x = 5x
-11 + 5x + x2 + x2 = 180

Combine like terms: x2 + x2 = 2x2
-11 + 5x + 2x2 = 180

Solving
-11 + 5x + 2x2 = 180

Solving for variable 'x'.

Reorder the terms:
-11 + -180 + 5x + 2x2 = 180 + -180

Combine like terms: -11 + -180 = -191
-191 + 5x + 2x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-191 + 5x + 2x2 = 0

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

Divide each side by '2'.
-95.5 + 2.5x + x2 = 0

Move the constant term to the right:

Add '95.5' to each side of the equation.
-95.5 + 2.5x + 95.5 + x2 = 0 + 95.5

Reorder the terms:
-95.5 + 95.5 + 2.5x + x2 = 0 + 95.5

Combine like terms: -95.5 + 95.5 = 0.0
0.0 + 2.5x + x2 = 0 + 95.5
2.5x + x2 = 0 + 95.5

Combine like terms: 0 + 95.5 = 95.5
2.5x + x2 = 95.5

The x term is 2.5x.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5x + 1.5625 + x2 = 95.5 + 1.5625

Reorder the terms:
1.5625 + 2.5x + x2 = 95.5 + 1.5625

Combine like terms: 95.5 + 1.5625 = 97.0625
1.5625 + 2.5x + x2 = 97.0625

Factor a perfect square on the left side:
(x + 1.25)(x + 1.25) = 97.0625

Calculate the square root of the right side: 9.852030248

Break this problem into two subproblems by setting 
(x + 1.25) equal to 9.852030248 and -9.852030248.

Subproblem 1

x + 1.25 = 9.852030248 Simplifying x + 1.25 = 9.852030248 Reorder the terms: 1.25 + x = 9.852030248 Solving 1.25 + x = 9.852030248 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = 9.852030248 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = 9.852030248 + -1.25 x = 9.852030248 + -1.25 Combine like terms: 9.852030248 + -1.25 = 8.602030248 x = 8.602030248 Simplifying x = 8.602030248

Subproblem 2

x + 1.25 = -9.852030248 Simplifying x + 1.25 = -9.852030248 Reorder the terms: 1.25 + x = -9.852030248 Solving 1.25 + x = -9.852030248 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = -9.852030248 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = -9.852030248 + -1.25 x = -9.852030248 + -1.25 Combine like terms: -9.852030248 + -1.25 = -11.102030248 x = -11.102030248 Simplifying x = -11.102030248

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.602030248, -11.102030248}

See similar equations:

| -7[7x-(2x+3)]=-6-[3(3x-4)-2x] | | 4x^2/3/x^4/5 | | (x+7)=x+71 | | 3x+360=270 | | -7+-1= | | 7y-4=2y+32 | | 4664+7f=700 | | -70=-9m+-16 | | 5(g-8)-g=4(g-10) | | (x/(x-3))+((6-x)/(3-x)) | | 5x-(3x-4)=10 | | -3(2s-4)=3s-(s+4) | | 250d+35000=550d+17615 | | 48=x+5+2x+3+5x | | c+3a= | | 230=39-x | | 5n^2=-35m | | 4(x+1)+2=2(x+3) | | 15-12+10= | | 3/4-5/4=10 | | 0.3X^2=0.6+0.3 | | -X+8Y=5 | | -23=-10+-1a | | k+1.5=4+1.5k | | -23=-10+a | | 360=(x-35)+x+(x-46)+0.5x | | 16x^2-50=350 | | x^3+8x^2+7=0 | | 360=(x-35)+x+(x-46)+1/2x | | 5t/35=126t/35 | | 38/2.37 | | 5x-7=3(2x-2) |

Equations solver categories