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Shtirlitz [24]
3 years ago
7

True or false, x =4 is a critical point to this inequality

Mathematics
1 answer:
snow_tiger [21]3 years ago
6 0

Answer:

true

Step-by-step explanation:

x²-4/x²+9x+20 >=0

cross multiplying the equation we have,

(x²-4/x²+9x+20)*x²+9x+20 >= 0*x²+9x+20

= x²-4>=0

x²>=4

taking the square root of both sides, we have:

√x²>= √4

x >=2

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3 years ago
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anyanavicka [17]

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Step-by-step explanation:

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3 years ago
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qwelly [4]
7.84
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3 years ago
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ElenaW [278]

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Step-by-step explanation:

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Sophie [7]

Answer:

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