Question

x-2y=4 find (√2;4√2)​

Answer 1

Step-by-step explanation:

putting x=√2 and y= 4√2

L HS ✓2-2×4✓2

= ✓2- 8✓2

=-7√2

RHS= 4

-7√2 is not equal to 4

therefore it √2;4✓2 is not the solution of the equation