x^2-x-26.25=0

Simple and best practice solution for x^2-x-26.25=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 x^2-x-26.25=0 equation:



x^2-x-26.25=0
We add all the numbers together, and all the variables
x^2-1x-26.25=0
a = 1; b = -1; c = -26.25;
Δ = b2-4ac
Δ = -12-4·1·(-26.25)
Δ = 106
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-1)-\sqrt{106}}{2*1}=\frac{1-\sqrt{106}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+\sqrt{106}}{2*1}=\frac{1+\sqrt{106}}{2} $

See similar equations:

| G(x)=4x^2+2x+9 | | 2.5n=42 | | 12=v3 | | m/3.5=-1.5 | | -48.55+k=-61.77 | | 5/6x=105 | | x^2+11x-166=0 | | x+60+x+50+x+25+125+70=540 | | 5/7x8.85=x | | 600=12x^2+2x-2 | | -2y-13=13 | | 12−y=90 | | 5x+29=-3(1-7x) | | 5x-33+68=180 | | 228=8x^2+6x-2 | | 1/5n=101 | | 120−y=90 | | –11a+4=15 | | −y=90 | | -(7=4x)-2x-(3x-9)=-8 | | 112=x^2-10x+16 | | 6y-8=5 | | -9(6x-1)=10 | | -3+2c=-7 | | 8x+4x=3x+18 | | 2x−(−4)=−14 | | {1}{3}s=7 | | {n-4)/4=12 | | 20=6b-16 | | |x-19|=5 | | y*y+y(^2)=1 | | 42=6f+12 |

Equations solver categories