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pishuonlain [190]
3 years ago
10

Evaluate the expression for the given value of the variable(s). -x2 - 4x; x = –3

Mathematics
1 answer:
frutty [35]3 years ago
3 0

Answer:

  3

Step-by-step explanation:

There are a significant number of minus signs here. We can simplify it a bit by factoring out -x:

  = -x(x +4)

When we substitute x = -3, we get ...

  = -(-3)(-3 +4)

  = 3(1)

  = 3

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Radio tower had a special on rechargeable batteries. It sold AA for $1 and AAA for $0.75. It sold 42 batteries on a single day a
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AA = $1
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Read more about quadratic functions at:

brainly.com/question/1214333

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