Ten years ago the age of the father was four times of his son. ten years hence the age of the father will be twice that of his son. the present ages of father & son are?

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Why you be expecting me to do your math u stupid butt? i ain't gonna but ima get points so you know what i'm sayin boii

The answer is 49/16 or 3 1/16