When solved for x, what is the sum when the roots of the quadratic equation are added?

x^2 + 10x + 24 = 0
a) −10
b) −12
c) 10
d) 12

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.