5b^2-9b+18=0

Simple and best practice solution for 5b^2-9b+18=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 5b^2-9b+18=0 equation:


Simplifying
5b2 + -9b + 18 = 0

Reorder the terms:
18 + -9b + 5b2 = 0

Solving
18 + -9b + 5b2 = 0

Solving for variable 'b'.

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

Divide each side by '5'.
3.6 + -1.8b + b2 = 0

Move the constant term to the right:

Add '-3.6' to each side of the equation.
3.6 + -1.8b + -3.6 + b2 = 0 + -3.6

Reorder the terms:
3.6 + -3.6 + -1.8b + b2 = 0 + -3.6

Combine like terms: 3.6 + -3.6 = 0.0
0.0 + -1.8b + b2 = 0 + -3.6
-1.8b + b2 = 0 + -3.6

Combine like terms: 0 + -3.6 = -3.6
-1.8b + b2 = -3.6

The b term is -1.8b.  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.
-1.8b + 0.81 + b2 = -3.6 + 0.81

Reorder the terms:
0.81 + -1.8b + b2 = -3.6 + 0.81

Combine like terms: -3.6 + 0.81 = -2.79
0.81 + -1.8b + b2 = -2.79

Factor a perfect square on the left side:
(b + -0.9)(b + -0.9) = -2.79

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 6x(x+4g)= | | 8z-18=5z-6 | | k=4(6+3) | | -17-3x=-5x+5 | | 12x-12=20+8x | | i-14=26 | | .05x-.20(30+x)=.30(30) | | -t=-4 | | 12v^3+6v^2-48v-24=0 | | MR=50-5Q | | k*2-30=15 | | 2p-8+3p-5=22 | | -7+8x=7x+14 | | 3x+7y+2x+9y= | | 5y+3(9-y)=43 | | 8x+7y=7 | | n-13=246 | | (27.3)+x=12 | | n-13= | | P=50-2.5Q | | k*2-30= | | y^2(y-2)=0 | | 10logx=70 | | Q=20-.4P | | 12x-6=x+60 | | -9(6m-3)+6(1+4)= | | 2(6+4d)=25-9d | | 5-h=11 | | -21+8x=4x+31 | | a+2b+3c+3a+3b= | | 2(x+1)-3(1-x)=2 | | 2x+10-4=36 |

Equations solver categories