2x-30+(x*x)=180

Simple and best practice solution for 2x-30+(x*x)=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 2x-30+(x*x)=180 equation:


Simplifying
2x + -30 + (x * x) = 180

Multiply x * x
2x + -30 + (x2) = 180
2x + -30 + x2 = 180

Reorder the terms:
-30 + 2x + x2 = 180

Solving
-30 + 2x + x2 = 180

Solving for variable 'x'.

Reorder the terms:
-30 + -180 + 2x + x2 = 180 + -180

Combine like terms: -30 + -180 = -210
-210 + 2x + x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-210 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '210' to each side of the equation.
-210 + 2x + 210 + x2 = 0 + 210

Reorder the terms:
-210 + 210 + 2x + x2 = 0 + 210

Combine like terms: -210 + 210 = 0
0 + 2x + x2 = 0 + 210
2x + x2 = 0 + 210

Combine like terms: 0 + 210 = 210
2x + x2 = 210

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 210 + 1

Reorder the terms:
1 + 2x + x2 = 210 + 1

Combine like terms: 210 + 1 = 211
1 + 2x + x2 = 211

Factor a perfect square on the left side:
(x + 1)(x + 1) = 211

Calculate the square root of the right side: 14.525839046

Break this problem into two subproblems by setting 
(x + 1) equal to 14.525839046 and -14.525839046.

Subproblem 1

x + 1 = 14.525839046 Simplifying x + 1 = 14.525839046 Reorder the terms: 1 + x = 14.525839046 Solving 1 + x = 14.525839046 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 14.525839046 + -1 Combine like terms: 1 + -1 = 0 0 + x = 14.525839046 + -1 x = 14.525839046 + -1 Combine like terms: 14.525839046 + -1 = 13.525839046 x = 13.525839046 Simplifying x = 13.525839046

Subproblem 2

x + 1 = -14.525839046 Simplifying x + 1 = -14.525839046 Reorder the terms: 1 + x = -14.525839046 Solving 1 + x = -14.525839046 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -14.525839046 + -1 Combine like terms: 1 + -1 = 0 0 + x = -14.525839046 + -1 x = -14.525839046 + -1 Combine like terms: -14.525839046 + -1 = -15.525839046 x = -15.525839046 Simplifying x = -15.525839046

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.525839046, -15.525839046}

See similar equations:

| 7a-2-3a=3a+6+5a | | .5x+.45(50)=33.5 | | (3y+13)+(5y-5)+(2y+2)=180 | | 2x^2+1-3=0 | | 2(x+4)=5(x+4) | | 3x^3-6x^2-6x+12=0 | | 28/32 | | 8(5r-2)=-16-4r | | y-33=51 | | 6x+4(x+4)=2(x+16) | | 5x-(2x-7)=28 | | 7/10-1/15 | | t^-1/2=8 | | 18x-3-8x=5(2x-1)+2 | | X^2-22x+96=0 | | 5/22+15/55 | | 5x+2x=50/4 | | -3u-4=8 | | 2y^4-8y^3=0 | | 13+7k=1+6(-6k+2) | | (x+6)-5(5-2x)+2=0 | | 12.1+x-7.9=4.4 | | (2/3)a^2=13 | | 3u-4=8 | | -2/7+6+1/7x+18 | | -4-2v+8=6-9v+6v | | 5x^2-3xy^2+2xy= | | -2/7=x | | 11.2=7u | | (30a14b8/10a17b-2)3 | | 3n+25=5(5-3n) | | 4/5+1.712 |

Equations solver categories