Question

Solve the equation x - 2y = 4 , where x = √2 and y = 4√2. fast answer me​

Answer 1

Step-by-step explanation:

$x - 2y = 4 \\ \\ putting \: x = \sqrt{2} and \: y = 4 \sqrt{2} \\ \\ \sqrt{2} - 2 \times 4 \sqrt{2} = 4 \\ \\ \sqrt{2} - 8 \sqrt{2} = 4 \\ \\ - 7 \sqrt{2} = 4 \\ \\ - 7 \sqrt{2} - 4 = 0 \\ \\ - (7 \sqrt{2} + 4) = 0 \\ \\ 7 \sqrt{2} + 4 = 0$