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zlopas [31]
1 year ago
13

For which interval does this quadratic inequality hold true?

Mathematics
1 answer:
adoni [48]1 year ago
3 0

Answer:

D

Step-by-step explanation:

x²-4x-12≤0

x²-6x+2x-12≤0

x(x-6)+2(x-6)≤0

(x-6)(x+2)≤0

x=6,-2

∴ value of x lies between -2 & 6

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For both questions we follow pythagoras therom.

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