Question

Expand y=(x+y)^2 and find x when y=2

Answer 1

Explanation:

`y = {x}^(2) + {y}^(2)`

`2 = {x}^(2) + {2}^(2)`

`2 = {x}^(2) + 4`

Subtract 4 from both sides

`- 2 = {x}^(2)`

There's no solution for x when y = 2