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Algebra bsc level sheet

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Solve for the real value of x
󰇛 󰇜

+󰇛 󰇜

=x
Solution
Lets suppose
a = 󰇛 󰇜

b = 󰇛 󰇜

So
󰇛 󰇜

+󰇛 󰇜

= x this equation becomes a+b = x ------ equation 1
Now multiply on both sides by a-b of equation 1
(a-b)(a+b) = x(a-b)
LHS seems to be a square so lets write it in the form of square
󰇛󰇜
- 󰇛󰇜
= x(a-b) ➔ now replace the values of a on LHS of a & b
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