X^2-5x-255=0

Simple and best practice solution for X^2-5x-255=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^2-5x-255=0 equation: 



X^2-5X-255=0

a = 1; b = -5; c = -255;
Δ = b2-4ac
Δ = -52-4·1·(-255)
Δ = 1045
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{-(-5)-\sqrt{1045}}{2*1}=\frac{5-\sqrt{1045}}{2}
$


$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+\sqrt{1045}}{2*1}=\frac{5+\sqrt{1045}}{2}
$

See similar equations:

| 2x-12=66 | | 5(k+11)+(2k-3)-7=2(k-4) | | 5(k+55)+(2k-3)-7=2(k-4) | | X(x-27)-18x=(x-3)(x+16 | | 1+x/100=10000 | | 9x=16-x^ | | 6+-5=2x+3 | | k=4/5+1/4 | | x2-10x-4000=0 | | 3m-12=2m+3 | | 3b=15=30 | | 12x65=6x-12 | | 3x=−7 | | {X-3y+3=0 | | 12u=9 | | 1/3m+7=1/2m+3 | | 8x-10x+10=30 | | 7x+35=10x+20 | | 24+4u=7u | | 15x^2+10x=1/2x | | -1/3(x+5)=3 | | 3/10m+4=7/10m | | 7x+x+3x=12 | | 2–3b=7b+12 | | -3(m+4)=-2(m+12) | | 13-2n=39 | | -5(6x-5)=-5 | | 14=x-14 | | 7(2-4)+5=1+3(y+8) | | b+7+2b+10=0 | | (x-2)^4/x+1=0 | | 2x^2+8x=17x |

Equations solver categories