Question

Find the roots of the polynomial given below. 3x2 - x - 5

Answer 1

\( \color{Black}{\Rightarrow 3x^2 - x - 5 = 0}\)

Answer 2

3x^2-x-5=0
D=1+15=16

Answer 3

x1=(1-sqrt(16))/6

Answer 4

x2=(1+sqrt(16))/6

Answer 5

x1=-1/2
x2=5/6

Answer 6

\( \color{Black}{\Rightarrow \Large {x = {-b \pm\sqrt{b^2 - 4ac} \over 2a}}}\)