Q 9
Kindly refer the link for answer similar to your query:
https://www.meritnation.com/ask-answer/question/if-x-1-root2-then-find-the-value-of-x-1-x-4/math/10406417
https://www.meritnation.com/ask-answer/question/if-x-1-root2-then-find-the-value-of-x-1-x-4/math/10406417