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Determine x and y.?
The positive numbers x and y are solutions to the equations x^4 - y^4=2009 and x^2 + y^2=49.
Determine x and y.
How can you solve this problem with for example: Difference of two squares/ (a+b)^2=a^2+2ab+b^2 or (a-b)^2=a^2-2ab+b^2
The answer is going to be : x=(45)^(1/2) and y=2
Can someone show me how I can get these answers step by step? I need to learn this.
Thank you.
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