Surds And The Square

Question 1

What does rationalising a denominator mean

Answer 1

Making the denominator a rational number

Question 2

How do we get rid of a surf

Answer 2

we can multiply the fraction by the same surd as the denominator

Question 3

how do we work out denominators with a sum (two terms)

Answer 3

we multiply with the fraction with the denominator and change the sign

Question 4

how do we solve radical equations

Answer 4

we first need to get rid of the square root

Question 5

How do we get rid of a square root

Answer 5

We divide it by a square it