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Simplify when x=4 x^2-4

Simplify when x=4 x^2-4
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5 votes
Simplify when x=4 x^2-4

asked
User MNZ
by
8.2k points

2 Answers

1 vote
12; 4^2=16, then you subtract by 4
answered
User GeckStar
by
8.2k points
3 votes

Answer:

12

Explanation:

  • X=4

  • \sf \rightarrowtail \: {x}^(2) - 4 \\ \sf \rightarrowtail \: {(4)}^(2) - 4 \\ \sf \rightarrowtail \: 16 - 4 \\ \sf \rightarrowtail \: 12
answered
User Jens Pettersson
by
8.2k points
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