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simplify when x=4 x^2-4

Sagot :

Answer:

12

Step-by-step explanation:

  • X=4
  • [tex] \sf \rightarrowtail \: {x}^{2} - 4 \\ \sf \rightarrowtail \: {(4)}^{2} - 4 \\ \sf \rightarrowtail \: 16 - 4 \\ \sf \rightarrowtail \: 12[/tex]
12; 4^2=16, then you subtract by 4