Question

please answer the following question​

Answer 1

Answer:

opt D is correct answer

Step-by-step explanation:

Mark as brainliest

Answer 2

EXPLANATION:-

$\sf\;==>\frac{1}{7}^{4-2x}=\sqrt{7} \\\\==>7^{-(4-2x)}=7^{\frac{1}{2}}\\\\==>7^{2x-4}=7^{\frac{1}{2}}\\\\cancelling\;7\;in\;lhs\;and\;rhs\\\\2x-4=\frac{1}{2}\\\\4x=8+1\\\\4x=9\\\\x=\frac{8}{9}$

Hence the value of x is 8/9

SO THE OPTION-B IS THE REQUIRED ANSWER