2 years ago

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

Mathematics

1 answer:

frutty [35]2 years ago

3 0

Answer:

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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Answer:

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2x-y=3; x=2 how do I solve this

Solnce55 [7]

2x-y=3

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