Rationalise the following

a)

b)

Step-by-step explanation:

Remember this property;

We multiply by the same denominator with opposite sign, that gives us a result of the same denominator with each term squared which will cause the term to come out of the root.

Now let's do it with your own equation.

Now let's try with b.

i just took the test, the correct answer is .. 31.5 in.

answer: i think it is (1,-2)