x^2+1.8x-0.144=0

Simple and best practice solution for x^2+1.8x-0.144=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 x^2+1.8x-0.144=0 equation:


Simplifying
x2 + 1.8x + -0.144 = 0

Reorder the terms:
-0.144 + 1.8x + x2 = 0

Solving
-0.144 + 1.8x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '0.144' to each side of the equation.
-0.144 + 1.8x + 0.144 + x2 = 0 + 0.144

Reorder the terms:
-0.144 + 0.144 + 1.8x + x2 = 0 + 0.144

Combine like terms: -0.144 + 0.144 = 0.000
0.000 + 1.8x + x2 = 0 + 0.144
1.8x + x2 = 0 + 0.144

Combine like terms: 0 + 0.144 = 0.144
1.8x + x2 = 0.144

The x term is 1.8x.  Take half its coefficient (0.9).
Square it (0.81) and add it to both sides.

Add '0.81' to each side of the equation.
1.8x + 0.81 + x2 = 0.144 + 0.81

Reorder the terms:
0.81 + 1.8x + x2 = 0.144 + 0.81

Combine like terms: 0.144 + 0.81 = 0.954
0.81 + 1.8x + x2 = 0.954

Factor a perfect square on the left side:
(x + 0.9)(x + 0.9) = 0.954

Calculate the square root of the right side: 0.976729236

Break this problem into two subproblems by setting 
(x + 0.9) equal to 0.976729236 and -0.976729236.

Subproblem 1

x + 0.9 = 0.976729236 Simplifying x + 0.9 = 0.976729236 Reorder the terms: 0.9 + x = 0.976729236 Solving 0.9 + x = 0.976729236 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9' to each side of the equation. 0.9 + -0.9 + x = 0.976729236 + -0.9 Combine like terms: 0.9 + -0.9 = 0.0 0.0 + x = 0.976729236 + -0.9 x = 0.976729236 + -0.9 Combine like terms: 0.976729236 + -0.9 = 0.076729236 x = 0.076729236 Simplifying x = 0.076729236

Subproblem 2

x + 0.9 = -0.976729236 Simplifying x + 0.9 = -0.976729236 Reorder the terms: 0.9 + x = -0.976729236 Solving 0.9 + x = -0.976729236 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9' to each side of the equation. 0.9 + -0.9 + x = -0.976729236 + -0.9 Combine like terms: 0.9 + -0.9 = 0.0 0.0 + x = -0.976729236 + -0.9 x = -0.976729236 + -0.9 Combine like terms: -0.976729236 + -0.9 = -1.876729236 x = -1.876729236 Simplifying x = -1.876729236

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.076729236, -1.876729236}

See similar equations:

| x+32+63=180 | | -4x+2(5k-6)=-3k-39 | | 7p+2(-1+7p)= | | 3(4x+2)-7x=10+3 | | 6+3*2-8-(6-4)= | | 180-48=x | | g-4=2 | | w^2+5w-104= | | -5(4t-3)+8t=6t-2 | | x+48=180 | | -12=-2k-3k | | 36x=90 | | -9(9b-6)+10= | | R^2+50R-375=0 | | x-90=36 | | 3z=14-23 | | 4x-(36/x)=0 | | zsquared-3z+2=0 | | 3(2x)-14x+32=12x-414(2) | | x-36=90 | | 8+10(7+6r)= | | 3x^2+15x+32=0 | | 15-(5m+8)5+3m-14= | | (2)(4x)(3y)-4x(7y)= | | 40a+7.50=12.50 | | -x+5=7-2x | | -2(4-2b)+8b= | | 10b-2=7b-2.4 | | 3x-4=-8+5x | | x+17=5*x+5 | | 2(x-b)/x-b | | 3x-4=-8+6x |

Equations solver categories