Unsolvable!!!

[input]7a^2+25=6[/input]

I can't solve this

Translated using Bing Translator (Spanish to English)

and if what the admin posted makes no sense to you (like it did to me ) {a=-1.647508942095828i, a=1.647508942095828i}
and if that didn't show up the way i wanted it to, a = 1.647508942095828i
you know, you could have also just looked it up on the scientific calculator this website is based on. X3
have a awesome day!

7a ²+25=6

subtract 25 from both sides and you get

7a ²=6-25 = -19

7a ²= -19

Divide both sides by 7

a ²= -19/7

You cannot find the square root of a negative number so there are NO 'real' answers

If you study maths for long enough you will find out about imaginary numbers where i=sqrt(-1)
so if you are considering imaginary numbers then you can keep going with your answer

a = +-Sqrt (-19/7)

= +- sqrt (19/7 * -1)

=+- sqrt(19/7) * sqrt(-1)

=+- sqrt (19/7) i

(which is the same answer that the administrator found)