Answer:
[tex]x=+1.78[/tex], [tex]x=-1.78[/tex]
Step-by-step explanation:
we have
[tex]6x^{2} +1=20[/tex]
solve for x
Subtract [tex]1[/tex] both sides
[tex]6x^{2} +1-1=20-1[/tex]
[tex]6x^{2}=19[/tex]
Divide by [tex]6[/tex] both sides
[tex]x^{2}=19/6[/tex]
Take square root both sides
[tex]x=(+/-)\sqrt{(19/6)}[/tex]
[tex]x=(+/-)1.78[/tex]
The values of x are
[tex]x=+1.78[/tex], [tex]x=-1.78[/tex]
