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