9a^2-10a+9=

Simple and best practice solution for 9a^2-10a+9= 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 9a^2-10a+9= equation:


Simplifying
9a2 + -10a + 9 = 0

Reorder the terms:
9 + -10a + 9a2 = 0

Solving
9 + -10a + 9a2 = 0

Solving for variable 'a'.

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

Divide each side by '9'.
1 + -1.111111111a + a2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -1.111111111a + -1 + a2 = 0 + -1

Reorder the terms:
1 + -1 + -1.111111111a + a2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1.111111111a + a2 = 0 + -1
-1.111111111a + a2 = 0 + -1

Combine like terms: 0 + -1 = -1
-1.111111111a + a2 = -1

The a term is -1.111111111a.  Take half its coefficient (-0.5555555555).
Square it (0.3086419752) and add it to both sides.

Add '0.3086419752' to each side of the equation.
-1.111111111a + 0.3086419752 + a2 = -1 + 0.3086419752

Reorder the terms:
0.3086419752 + -1.111111111a + a2 = -1 + 0.3086419752

Combine like terms: -1 + 0.3086419752 = -0.6913580248
0.3086419752 + -1.111111111a + a2 = -0.6913580248

Factor a perfect square on the left side:
(a + -0.5555555555)(a + -0.5555555555) = -0.6913580248

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| x+.2x=85 | | 80+(-9/2)=0 | | 4n^2+8n-96= | | y-7=.25y+.5 | | 6a^2-6a-120= | | 4x-26=3x+17 | | 3(-x+2)+4(x-2)=15 | | 2x-21=89 | | -4(3(-2)-6)= | | -2(3x-4)+2(-2x-1)=10 | | 4x+14=-3x-21 | | -2(3x-4)+4(x-2)=15 | | (4/5-2/3)2/3 | | (4/5-2/3)x2/3 | | -4n^2-6n+1=0 | | X/0.5=38 | | (4/5+2/3)/3/4 | | X-2.18=2.42 | | 3(2x-2)+(x+10)=53 | | (2x^3-4x^2+3)=(x^3-3x^2) | | 1/3(6x-9)=-2x+13 | | (4/5+2/3)-(1/5x1/5) | | 3x+2+5x=44 | | (4/5+2/3)-(1/5*1/5) | | X+1/4=9/8 | | 50(x-1)=30x | | 2.5x=19.5 | | 6x^2=19x-10 | | 1.2y=9.37 | | 2/3+1/4*5/6 | | 5/7w=1/2 | | -6x-6=72 |

Equations solver categories