(9x)(9x)+18x+8=0

Simple and best practice solution for (9x)(9x)+18x+8=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 (9x)(9x)+18x+8=0 equation: 


Simplifying
(9x)(9x) + 18x + 8 = 0

Remove parenthesis around (9x)
9x(9x) + 18x + 8 = 0

Remove parenthesis around (9x)
9x * 9x + 18x + 8 = 0

Reorder the terms for easier multiplication:
9 * 9x * x + 18x + 8 = 0

Multiply 9 * 9
81x * x + 18x + 8 = 0

Multiply x * x
81x2 + 18x + 8 = 0

Reorder the terms:
8 + 18x + 81x2 = 0

Solving
8 + 18x + 81x2 = 0

Solving for variable 'x'.

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

Divide each side by '81'.
0.0987654321 + 0.2222222222x + x2 = 0

Move the constant term to the right:

Add '-0.0987654321' to each side of the equation.
0.0987654321 + 0.2222222222x + -0.0987654321 + x2 = 0 + -0.0987654321

Reorder the terms:
0.0987654321 + -0.0987654321 + 0.2222222222x + x2 = 0 + -0.0987654321

Combine like terms: 0.0987654321 + -0.0987654321 = 0.0000000000
0.0000000000 + 0.2222222222x + x2 = 0 + -0.0987654321
0.2222222222x + x2 = 0 + -0.0987654321

Combine like terms: 0 + -0.0987654321 = -0.0987654321
0.2222222222x + x2 = -0.0987654321

The x term is 0.2222222222x.  Take half its coefficient (0.1111111111).
Square it (0.01234567901) and add it to both sides.

Add '0.01234567901' to each side of the equation.
0.2222222222x + 0.01234567901 + x2 = -0.0987654321 + 0.01234567901

Reorder the terms:
0.01234567901 + 0.2222222222x + x2 = -0.0987654321 + 0.01234567901

Combine like terms: -0.0987654321 + 0.01234567901 = -0.08641975309
0.01234567901 + 0.2222222222x + x2 = -0.08641975309

Factor a perfect square on the left side:
(x + 0.1111111111)(x + 0.1111111111) = -0.08641975309

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| x+x/5+x/3=69 | | 8-16/4(-8)+7= | | f(308)=.8(308)+72 | | 1/5+1/3=69 | | 5x+9y=7 | | 5(6x+3)=225 | | 2v+3(8v)=16 | | 14-5=2x-10 | | -3(x+4)+15=17 | | (6x-1)(2x+5)=0 | | 20+-3p=2p | | f(-2)=2-2-2+3 | | 3(x+4)21x=72 | | 6-x+2=24-12 | | 20+5y-16=-18+8y+7 | | 36*3-4*(6+2)= | | 3x+13x=64 | | 0.4x+0.25(105-x)=33 | | 36.3-4*(6+2)= | | a+5=8 | | 7x*3x*x+9=0 | | (c+3/4)(-6)=0 | | 7x^3-56x^2+105x= | | X-12=3-8 | | 0.4x+0.25(135-x)=37 | | -4x-17=-85 | | 3y=24x+15 | | (3x-7)(x+8)=0 | | (2x-5)(x+1)=0 | | 379.4=3.14*r^2 | | (15/16)/(5/8) | | 0.4x+0.25(83-x)=39 |

Equations solver categories