5x+2=-1.8x^2-6x+222

Simple and best practice solution for 5x+2=-1.8x^2-6x+222 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 5x+2=-1.8x^2-6x+222 equation:


Simplifying
5x + 2 = -1.8x2 + -6x + 222

Reorder the terms:
2 + 5x = -1.8x2 + -6x + 222

Reorder the terms:
2 + 5x = 222 + -6x + -1.8x2

Solving
2 + 5x = 222 + -6x + -1.8x2

Solving for variable 'x'.

Reorder the terms:
2 + -222 + 5x + 6x + 1.8x2 = 222 + -6x + -1.8x2 + -222 + 6x + 1.8x2

Combine like terms: 2 + -222 = -220
-220 + 5x + 6x + 1.8x2 = 222 + -6x + -1.8x2 + -222 + 6x + 1.8x2

Combine like terms: 5x + 6x = 11x
-220 + 11x + 1.8x2 = 222 + -6x + -1.8x2 + -222 + 6x + 1.8x2

Reorder the terms:
-220 + 11x + 1.8x2 = 222 + -222 + -6x + 6x + -1.8x2 + 1.8x2

Combine like terms: 222 + -222 = 0
-220 + 11x + 1.8x2 = 0 + -6x + 6x + -1.8x2 + 1.8x2
-220 + 11x + 1.8x2 = -6x + 6x + -1.8x2 + 1.8x2

Combine like terms: -6x + 6x = 0
-220 + 11x + 1.8x2 = 0 + -1.8x2 + 1.8x2
-220 + 11x + 1.8x2 = -1.8x2 + 1.8x2

Combine like terms: -1.8x2 + 1.8x2 = 0.0
-220 + 11x + 1.8x2 = 0.0

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

Divide each side by '1.8'.
-122.2222222 + 6.111111111x + x2 = 0

Move the constant term to the right:

Add '122.2222222' to each side of the equation.
-122.2222222 + 6.111111111x + 122.2222222 + x2 = 0 + 122.2222222

Reorder the terms:
-122.2222222 + 122.2222222 + 6.111111111x + x2 = 0 + 122.2222222

Combine like terms: -122.2222222 + 122.2222222 = 0.0000000
0.0000000 + 6.111111111x + x2 = 0 + 122.2222222
6.111111111x + x2 = 0 + 122.2222222

Combine like terms: 0 + 122.2222222 = 122.2222222
6.111111111x + x2 = 122.2222222

The x term is 6.111111111x.  Take half its coefficient (3.055555556).
Square it (9.336419756) and add it to both sides.

Add '9.336419756' to each side of the equation.
6.111111111x + 9.336419756 + x2 = 122.2222222 + 9.336419756

Reorder the terms:
9.336419756 + 6.111111111x + x2 = 122.2222222 + 9.336419756

Combine like terms: 122.2222222 + 9.336419756 = 131.558641956
9.336419756 + 6.111111111x + x2 = 131.558641956

Factor a perfect square on the left side:
(x + 3.055555556)(x + 3.055555556) = 131.558641956

Calculate the square root of the right side: 11.469901567

Break this problem into two subproblems by setting 
(x + 3.055555556) equal to 11.469901567 and -11.469901567.

Subproblem 1

x + 3.055555556 = 11.469901567 Simplifying x + 3.055555556 = 11.469901567 Reorder the terms: 3.055555556 + x = 11.469901567 Solving 3.055555556 + x = 11.469901567 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.055555556' to each side of the equation. 3.055555556 + -3.055555556 + x = 11.469901567 + -3.055555556 Combine like terms: 3.055555556 + -3.055555556 = 0.000000000 0.000000000 + x = 11.469901567 + -3.055555556 x = 11.469901567 + -3.055555556 Combine like terms: 11.469901567 + -3.055555556 = 8.414346011 x = 8.414346011 Simplifying x = 8.414346011

Subproblem 2

x + 3.055555556 = -11.469901567 Simplifying x + 3.055555556 = -11.469901567 Reorder the terms: 3.055555556 + x = -11.469901567 Solving 3.055555556 + x = -11.469901567 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.055555556' to each side of the equation. 3.055555556 + -3.055555556 + x = -11.469901567 + -3.055555556 Combine like terms: 3.055555556 + -3.055555556 = 0.000000000 0.000000000 + x = -11.469901567 + -3.055555556 x = -11.469901567 + -3.055555556 Combine like terms: -11.469901567 + -3.055555556 = -14.525457123 x = -14.525457123 Simplifying x = -14.525457123

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.414346011, -14.525457123}

See similar equations:

| 12=-1/3x | | -9x-2y=6 | | 24=6x/7 | | f(-4)=4x-3 | | X/(1/m)/(m-8/8m) | | (3r^4-3r^3+4r^2+12r-8)+(-r^5+7r^3+3r^2-4r+4)+(-6r^4+r^2-4r-6)= | | 2x^2+x-52=0 | | 3ab+7b-8ab-5b+4-2b= | | 27750+200.00w=312.50w | | 1/8+7/12+1/15 | | 162v^7z^5/12v^2z^3 | | (2x+4)/5+2=12 | | (2x+4)/5+2 | | 2[2a-2a(2a+2b)+4a^2]= | | 27750.00+200.00w=50000 | | 6[6a-2a(3a+3b)+6a^2]= | | x^9y^-9/y^-6 | | 6x^6y^4+42x^4y^3+54xy= | | 3(-5)+5(-6)=15 | | 5t^2-20t+10=0 | | 0+5(-3)=15 | | -5t^2-5t+67=0 | | 16t^2-202t+82=0 | | 16t^2-202+82=0 | | 6y^2+20y-16= | | -9+5y=15 | | 9+5y=15 | | Y=8(-1/8)+8 | | kx^2-3k+4x+2=0 | | Y=8(1/8)+8 | | Y=8x1/8+8 | | 5x+7y=20 |

Equations solver categories