Hello! I'm having trouble on solving this equation $\displaystyle (x+y\sqrt5)^2=7+3\sqrt5$ Thank you!
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Originally Posted by GreenMile Hello! I'm having trouble on solving this equation $\displaystyle (x+y\sqrt5)^2=7+3\sqrt5$ Thank you! Solving for what? You can't solve it directly since we have two unknowns and one equation. To express x in terms of y go with completing the square
I'm sorry, it says: Find all $\displaystyle (x,y)$ pairs which satisfy: $\displaystyle (x+y\sqrt5)^2=7+3\sqrt5$ Thank you.
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