4x^2-13x+126=0

Simple and best practice solution for 4x^2-13x+126=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^2-13x+126=0 equation:


Simplifying
4x2 + -13x + 126 = 0

Reorder the terms:
126 + -13x + 4x2 = 0

Solving
126 + -13x + 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'.
31.5 + -3.25x + x2 = 0

Move the constant term to the right:

Add '-31.5' to each side of the equation.
31.5 + -3.25x + -31.5 + x2 = 0 + -31.5

Reorder the terms:
31.5 + -31.5 + -3.25x + x2 = 0 + -31.5

Combine like terms: 31.5 + -31.5 = 0.0
0.0 + -3.25x + x2 = 0 + -31.5
-3.25x + x2 = 0 + -31.5

Combine like terms: 0 + -31.5 = -31.5
-3.25x + x2 = -31.5

The x term is -3.25x.  Take half its coefficient (-1.625).
Square it (2.640625) and add it to both sides.

Add '2.640625' to each side of the equation.
-3.25x + 2.640625 + x2 = -31.5 + 2.640625

Reorder the terms:
2.640625 + -3.25x + x2 = -31.5 + 2.640625

Combine like terms: -31.5 + 2.640625 = -28.859375
2.640625 + -3.25x + x2 = -28.859375

Factor a perfect square on the left side:
(x + -1.625)(x + -1.625) = -28.859375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 3x^2-41x+105=0 | | 4(3x+2)+3=3(2x-5)+5 | | z^2+4iz+6=0 | | 8(2x+4)=3(-3x-6) | | 21+21+32=180 | | 26-2x=2x-10 | | 9x-12=x+20 | | x=4+5x | | 6x^2+17x+29=0 | | X-9=45-6x | | X-3=x+27 | | 10(4x-4)-8(4x+5)=-56 | | x+3=4x+8 | | X=2+4x-3 | | 3xy+2x-2y=0 | | 5x+8-9x+3+4x= | | X-5=70-6x | | 6x^2-58x+99=0 | | 15x+9x-1=7x+3 | | 4m+6=6-2m | | ax+2a^2=0 | | 5r^2+3r=14.81 | | 6sin^2x+sin=4 | | -0.391+23.94x=-3.2(0.43x-2.3) | | 4v+6=5v-8 | | 2X^2+13x+5=0 | | x-7(1.34+0.32x)=0.01x | | 3(-2)=9 | | 9(x+4)=3(x+26) | | Y=-0.2x^2+5 | | X^5-6x^3-8x-1=0 | | 46=g+-8 |

Equations solver categories