randyu58 randyu58
  • 24-08-2016
  • Mathematics
contestada

Given that ƒ(x) = x² + 4x, evaluate ƒ(-2)

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willi1
willi1 willi1
  • 24-08-2016
f(-2)=(-2)2+4(-2)
4-8
-4
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nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 24-08-2016
[tex]f(x)= x^{2} +4x \\ f(-2)= (-2)^{2} +4(-2) \\ =4-8 \\ =-4[/tex]
Answer Link

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