The author posted a question in Homework
algebra? and got a better answer
Response from Дима[+++]
Response from 0[+++++]
What should I do?
What should I do?
Response from 0[++]
Check the signs. You need to open the brackets, move them from the right to the left side, then group them together. Then take the same expressions out of the brackets and two multiplied brackets equal to zero will appear. Each equate to zero and find it.
Check the signs. You need to open the brackets, move them from the right to the left side, then group them together. Then take the same expressions out of the brackets and two multiplied brackets equal to zero will appear. Each equate to zero and find it.
Response from 0[+++++]
Answer: x=2 y=1 Opening brackets we get x^2*y^2+x^2+4*y^2+4-8*x*y=0 we group x^2-4*x*y+4*y^2 + x^2*y^2-4*x*y+4=0 we minimize both brackets using the square of difference formula: x-2*y ^2+ x*y-2 ^2=0 So both summands are zero make the system x-2*y=0 x*y-2=0 Solving it we get the above answer.
Answer: x=2 y=1 Opening brackets we get x^2*y^2+x^2+4*y^2+4-8*x*y=0 we group x^2-4*x*y+4*y^2 + x^2*y^2-4*x*y+4=0 we minimize both brackets using the square of difference formula: x-2*y ^2+ x*y-2 ^2=0 So both summands are zero make the system x-2*y=0 x*y-2=0 Solving it we get the above answer.