2 years ago

solve for x under the assumption that x<0. Enter your answer in interval notation using grouping symbols

Mathematics

1 answer:

alexira [117]2 years ago

8 0

Step-by-step explanation:

x² + 9x < -20

x² + 9x + 20 < 0

(x + 4)(x + 5) < 0

Therefore -5 < x < -4 / (-5,-4)

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