this week we learned how to divide, multiply, subtract and add radicals

ADDITION:

if the radicands are the same you can add the coefficients

2√2 + 8√2 = 10√2    ✅︎

4√5 + 7√3                ❎

if the radicands are different simplify it if possible

2√16 + 3√4 = ?

16 = 4 x 4,   4 = 2 x 2 (a pair of numbers becomes one)

↳ 2 x 2√4

↳ 4√4 + 3√4 = 7√4

SUBTRACTION:

there are the same rules in subtraction as there are in addition

5√5 – 3√5 = 2√5

MULTIPLICATION:

multiply the coefficients together, then multiply the radicands together, then if possible simplify

2√4 + 8√3 = 16√12

↳ 16√12 = 32√3,    32√3 is the final answer