4k^2-k-10=0

Solution for 4k^2-k-10=0 equation:

4k^2-k-10=0

We add all the numbers together, and all the variables

4k^2-1k-10=0

a = 4; b = -1; c = -10;
Δ = b2-4ac
Δ = -12-4·4·(-10)
Δ = 161
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-1)-\sqrt{161}}{2*4}=\frac{1-\sqrt{161}}{8}
$
$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+\sqrt{161}}{2*4}=\frac{1+\sqrt{161}}{8}
$