x^2+.15x-.045=0

Simple and best practice solution for x^2+.15x-.045=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+.15x-.045=0 equation:


Simplifying
x2 + 0.15x + -0.045 = 0

Reorder the terms:
-0.045 + 0.15x + x2 = 0

Solving
-0.045 + 0.15x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '0.045' to each side of the equation.
-0.045 + 0.15x + 0.045 + x2 = 0 + 0.045

Reorder the terms:
-0.045 + 0.045 + 0.15x + x2 = 0 + 0.045

Combine like terms: -0.045 + 0.045 = 0.000
0.000 + 0.15x + x2 = 0 + 0.045
0.15x + x2 = 0 + 0.045

Combine like terms: 0 + 0.045 = 0.045
0.15x + x2 = 0.045

The x term is 0.15x.  Take half its coefficient (0.075).
Square it (0.005625) and add it to both sides.

Add '0.005625' to each side of the equation.
0.15x + 0.005625 + x2 = 0.045 + 0.005625

Reorder the terms:
0.005625 + 0.15x + x2 = 0.045 + 0.005625

Combine like terms: 0.045 + 0.005625 = 0.050625
0.005625 + 0.15x + x2 = 0.050625

Factor a perfect square on the left side:
(x + 0.075)(x + 0.075) = 0.050625

Calculate the square root of the right side: 0.225

Break this problem into two subproblems by setting 
(x + 0.075) equal to 0.225 and -0.225.

Subproblem 1

x + 0.075 = 0.225 Simplifying x + 0.075 = 0.225 Reorder the terms: 0.075 + x = 0.225 Solving 0.075 + x = 0.225 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.075' to each side of the equation. 0.075 + -0.075 + x = 0.225 + -0.075 Combine like terms: 0.075 + -0.075 = 0.000 0.000 + x = 0.225 + -0.075 x = 0.225 + -0.075 Combine like terms: 0.225 + -0.075 = 0.15 x = 0.15 Simplifying x = 0.15

Subproblem 2

x + 0.075 = -0.225 Simplifying x + 0.075 = -0.225 Reorder the terms: 0.075 + x = -0.225 Solving 0.075 + x = -0.225 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.075' to each side of the equation. 0.075 + -0.075 + x = -0.225 + -0.075 Combine like terms: 0.075 + -0.075 = 0.000 0.000 + x = -0.225 + -0.075 x = -0.225 + -0.075 Combine like terms: -0.225 + -0.075 = -0.3 x = -0.3 Simplifying x = -0.3

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.15, -0.3}

See similar equations:

| 5y=22-2x | | 3(-2+5x)-17x=2x-7(-x+3) | | 3 = 3 + z2 | | (x+1+1+1)-(x+1)= | | 8-8=4-4 | | 8/8=8/8 | | 4(5-2x)+3x-3(1-5x)-2=(9-4x)(5) | | 6x+4y=67-x+y | | 5(1+m)=2(3+10m) | | N^9/2n | | x^2+.17x=.039 | | x^2+.17x+0.007225=.046225 | | n^2+7n-44= | | 4-2a=10 | | t/10-21=161 | | x^2+0.09x-0.022=0 | | x^2+4x-172.5=0 | | y+19=75 | | h/-5=-7 | | 37=w+12 | | z+-48=12 | | -30=p+-97 | | 22x^6+20=0 | | 0=4x^2-36x-72 | | t+-54=21 | | 0=2x^2-36x-72 | | 7=j/-4 | | 7h=-42 | | 7p^2+63p=0 | | -3/4x(-3/4) | | g/3=1 | | j/-4=-4 |

Equations solver categories