Mxojeda17
Mxojeda17 Mxojeda17
  • 18-07-2016
  • Mathematics
contestada

Determine the vertex form of g(x) = x2 + 2x – 1

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dalendrk
dalendrk dalendrk
  • 18-07-2016
[tex]The\ vertex\ form:f(x)=a(x-h)^2+k\\\\g(x)=x^2+2x-1=\underbrace{x^2+2x\cdot1+1^2}_{use\ (*)}-1^2-1\\\\\boxed{f(x)=(x+1)^2-2}\\\\(*)\ (a+b)^2=a^2+2ab+b^2[/tex]
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