Si x1 y x2 son raíces de la ecuación 2x² - 3x + K =0, donde se cumplen que x1+x2 •x2= 1, entonces k =

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.

9.8? i'm not really sure