The trinomial x2 – 3x – 4 is represented by the model. what are the factors of the trinomial? (x + 1) and (x – 4) (x + 4) and (x – 1) (x + 5) and (x – 4) (x + 4) and (x – 5)

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.