Question

pleas help me with these..​

Answer 1

You will get 68-48√2/4 by simplifying the expression.

EXPLAINATION:

At first we have to rationalise the denominator,

we will do this by multiplying( 6 - 4√2 ) with the numerator as well as denominator,

( 6 + 4√2 ) × ( 6 - 4√2 ) = 6^2 - 4√2^2 = 36 - 32 = 4

Denominator is 4.

Now,

( 6 - 4√2 ) × ( 6 - 4√2) = 36 + 32 - 48√2 = 68 - 48√2

Combining the Numerator and the denominator we will get,

68-48√2

4

HOPE THIS HELPS.

Answer 2

Answer:

17 - 12$\sqrt{2}$ is the answer

Step-by-step explanation:

Check the attachment for the solution