Question

(2/x)^2-4=7

Pls solve

Answer 1

http://openstudy.com/users/unklerhaukus#/updates/4ff57123e4b01c7be8c863bd

Answer 2

\[(\frac{2}{x})^2-4=7\]
Take off the 4\[(\frac{2}{x})^2-4+4=7+4\]\[(\frac{2}{x})^2=11\]
Take the square root on both side
\[(\frac{2}{x})=\sqrt{11}\]
Multiply by one half..
\[(\frac{2}{\sqrt{11}})=x\]

Answer 3

pls tell the a,b and c

Answer 4

Please tell me what is A, B and C from what you learnt?