4x^2-18x+61=0

Simple and best practice solution for 4x^2-18x+61=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 4x^2-18x+61=0 equation:


Simplifying
4x2 + -18x + 61 = 0

Reorder the terms:
61 + -18x + 4x2 = 0

Solving
61 + -18x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
15.25 + -4.5x + x2 = 0

Move the constant term to the right:

Add '-15.25' to each side of the equation.
15.25 + -4.5x + -15.25 + x2 = 0 + -15.25

Reorder the terms:
15.25 + -15.25 + -4.5x + x2 = 0 + -15.25

Combine like terms: 15.25 + -15.25 = 0.00
0.00 + -4.5x + x2 = 0 + -15.25
-4.5x + x2 = 0 + -15.25

Combine like terms: 0 + -15.25 = -15.25
-4.5x + x2 = -15.25

The x term is -4.5x.  Take half its coefficient (-2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
-4.5x + 5.0625 + x2 = -15.25 + 5.0625

Reorder the terms:
5.0625 + -4.5x + x2 = -15.25 + 5.0625

Combine like terms: -15.25 + 5.0625 = -10.1875
5.0625 + -4.5x + x2 = -10.1875

Factor a perfect square on the left side:
(x + -2.25)(x + -2.25) = -10.1875

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 7b+10=4b+1 | | 9+7x=81+x | | 10+8x=-2x+34 | | 5x-5=14x-32 | | 11x+21=3x+133 | | 49x^2-81=0 | | 6x+18=16x-92 | | 6X+14=113-5x | | 4a+6=2a+2 | | -17-2x=8-7x | | 12+2x=5x | | 5(x-6)=-28.5 | | 6x^2-2x=8 | | 3x+12=-84-9x | | 20-n=n-10 | | 10-4x=-6 | | -111-9x=9x+15 | | y^2-10y-12=0 | | 7.8x+2=2x+20 | | 2y-4=11 | | 6x-5=2x+9 | | 288-4x=41x+23 | | 2(4x-3)=14 | | 2x+29=9x-34 | | -5g-(11-2g)=-(g+8)+5 | | 5y+3=3y+10 | | 2x+5=23-x | | 5-8x=32-15x | | 2x-5=11x-34 | | w-3=9 | | 5(a+1)=42.5 | | 11x-5=9x+1 |

Equations solver categories