Surds Flashcards
1
Q
how do you do √a x √b
A
√a x b
2
Q
how do you do √a/√b (square root of a divided by the square root of b)
A
√a/b
square root of a/b
3
Q
how do you do √a + √b
A
DO NOTHING
4
Q
how do you do (a+√b)^2
A
(a+√b)(a+√b) = a^2+2a√b+b
5
Q
how do you do (a+√b)(a-√b)
A
a^2+a√b-a√b-(√b)^2
a^2-b
6
Q
how do you do a/√b (a divided by square root of b)
A
a/√b x √b/√b = a√b/b
