<PRE><B>Question 1095793</B>
1.x+y=16
   xy=55
Use substitution.
y = 16-x
Sub for y in the 2nd eqn
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2.x-y=3
  x^2+y^2=185
Similar to #1
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3.y^2+xy=-6
  x^2+xy=10
I&#39;ll do later.
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4.x^2-y^2=24
  xy=35
I&#39;ll do later.
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5.a-b=-1
  ab=14
Similar to #1
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You work on the 3, email via the TY note for help or to check your work.


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