Question

Exponents and Power ( Class 8)

Answer 1

Hey there

Refer to the attachment provided

Answer 2

$( {2}^{x - y} = 8) \: \: and \: \: ({2}^{x + y} = 64) \\ \\{2}^{x - y} = 8 \: \: and \: \: {2}^{x - y} = {2}^{3} \\ \\ x - y + x + y= 3 + 6 \\ \\ 2x = 9 \\ \\ x = \frac{9}{2} .$

option d) is correct ✔