Given that x-y=3 and 3x+y=17, find without solving for X and Y the value of (a) 2xy-x2-y2 (b) 6xy+y2+9x2 (c) 3x2-2xy+y2

      

Given that x-y=3 and 3x+y=17, find without solving for X and Y the value of
(a) 2xy-x2-y2
(b) 6xy+y2+9x2
(c) 3x2-2xy+y2
(d)pic15820191253.png

  

Answers


sharon
pic15820191304.png
sharon kalunda answered the question on August 15, 2019 at 10:09


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