4x^2-8x+9=0

Simple and best practice solution for 4x^2-8x+9=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^2-8x+9=0 equation:


Simplifying
4x2 + -8x + 9 = 0

Reorder the terms:
9 + -8x + 4x2 = 0

Solving
9 + -8x + 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'.
2.25 + -2x + x2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + -2x + -2.25 + x2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + -2x + x2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + -2x + x2 = 0 + -2.25
-2x + x2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
-2x + x2 = -2.25

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 = -2.25 + 1

Reorder the terms:
1 + -2x + x2 = -2.25 + 1

Combine like terms: -2.25 + 1 = -1.25
1 + -2x + x2 = -1.25

Factor a perfect square on the left side:
(x + -1)(x + -1) = -1.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2x-8y=32 | | 3(8+42x)=12 | | 8x+2y=24 | | 3(8+42)=12 | | 6(y+9)=6(y-2) | | m^2-mn-42n^2=0 | | 2x^2+x+3=0 | | 2x-3=x+9 | | 5x-(3x+14)=4(x+3) | | 7n+3-4n=-9 | | 6y-5(4y-18)= | | 2-(3x-2)=x+4 | | 4(x+42x)=12 | | x^2=5(x+60) | | (x+2)2=49 | | 12x+16=4y | | 7x-5=2x-4 | | -y-8y-64=4y-12 | | x+4d=20 | | 8x+6x=35 | | 5(3x-10)=3x-38 | | x^4+8x^2+16=0 | | 2x-1.5=2.1 | | -7-2n-6n=7n-5n+22 | | 24x=-3y | | 3x-10=-4 | | 6t-3t^2=0 | | 5(3x+10)=3x-38 | | 5(3x+10)=-3x-38 | | X^3+7x^2+3x-14=0 | | 2x+3b=5y | | 3x+9y=27 |

Equations solver categories