Answers created by erinspoons

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• How do you simplify #(x-2+3i)(x-2-3i)#?
  
• How do you solve #logx+log(x+21)=2#?
  
• How do you find the exact solutions to the system #x^2/30+y^2/6=1# and #x=y#?
  
• How do you evaluate #g(m+1)# if #g(x)=2x^2-4x+2#?
  
• Let #f(x)=x^2-12# and #g(x)=15-x#, how do you find #(f/g)(5)#?