Question

Please help urgently!

Answer 1

For a: a = 4√2 - 3 - b √2

For b: b = ( 4√2 - 3 - a )√ 2 / 2

Answer 2

`a=-6\quad and \quad b=8`

Explanation:

`(8-√(18))/(√(2))=(√(2))/(√(2))* (8-√(18))/(√(2))\\\\=8√(2)-√(2)\cdot √(18)\\\\=8√(2)-√(36)\\\\=-6+8\sqrt2`

By comparing the last expression with
`a+b√(2)`, we get:

`a=-6\quad and \quad b=8`

Best Regards!