9x^2-18x+79=0

Simple and best practice solution for 9x^2-18x+79=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^2-18x+79=0 equation:


Simplifying
9x2 + -18x + 79 = 0

Reorder the terms:
79 + -18x + 9x2 = 0

Solving
79 + -18x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
8.777777778 + -2x + x2 = 0

Move the constant term to the right:

Add '-8.777777778' to each side of the equation.
8.777777778 + -2x + -8.777777778 + x2 = 0 + -8.777777778

Reorder the terms:
8.777777778 + -8.777777778 + -2x + x2 = 0 + -8.777777778

Combine like terms: 8.777777778 + -8.777777778 = 0.000000000
0.000000000 + -2x + x2 = 0 + -8.777777778
-2x + x2 = 0 + -8.777777778

Combine like terms: 0 + -8.777777778 = -8.777777778
-2x + x2 = -8.777777778

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 = -8.777777778 + 1

Reorder the terms:
1 + -2x + x2 = -8.777777778 + 1

Combine like terms: -8.777777778 + 1 = -7.777777778
1 + -2x + x2 = -7.777777778

Factor a perfect square on the left side:
(x + -1)(x + -1) = -7.777777778

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2x+50+x+10=2x+10 | | y7z3/y6z | | 20/100=x/5 | | 25=1d+21 | | 14a-93=49-59a | | (2x-7)^5/2x-7)^3 | | 2(a-1)-3/4w=3 | | 12x-12=56 | | -z/3=3 | | (7+7x)-7x= | | 5.95+175x=29.95 | | 29=2j+3 | | 5(m-2)+35=-4 | | -z-3=3 | | 37=6w+7 | | 3(x-5)=5(x+2) | | 3(-5x+40)+8=0 | | (14)/(5x^(2/3))*(2x^3) | | 4(9x+3)+2(12-x)= | | x+38=2(x+10)+4 | | 72x-44=45 | | 16=u/2 | | 0.06+2(0.07x-1)=2 | | 8x+8x+8x=143 | | -8=5n | | 7X+6x-3x-5=25 | | 10(x+2)=4(x-1) | | x^2-31x+130=0 | | 10-32=56 | | 266=-14a | | x+5y=6x+15 | | 8p=-4 |

Equations solver categories