3] What is - 2y + 10 + 2y - 8 simplified? a) – 4y + 18
C) 18
b) 4y + 2
d) 2
Expressions

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.