SOLUTION: Please help me to solve this problem. Given that (x + y)*2=63 and xy=65, find the value of x*2 + y*2 - 1. Thank you...
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Question 882141: Please help me to solve this problem. Given that (x + y)*2=63 and xy=65, find the value of x*2 + y*2 - 1. Thank you...
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
Question almost looks like a rectangle problem.
You want x and y solutions.
-
Substitute.
D=(63)^2-4*2*130=3969-1040=2929=101*29
The results for x will be positive either way, so you might expect y to be the other value; the PLUS form is one dimension and the MINUS form is the other dimension.
You can finish from that.
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