Question

Please help again! Same thing!

Answer 1

a = - 3, b = 5

Explanation:

To rationalise the denominator multiply the numerator/ denominator by
`√(2)`

=
`(√(2)(10-√(18)) )/((√(2))^2 )`

=
`(10√(2)-√(36) )/(2)`

=
`(10√(2)-6 )/(2)`

= 5
`√(2)` - 3

= - 3 + 5
`√(2)` ← in the form a + b
`√(2)`

with a = - 3 and b = 5