Ggrey2020 Ggrey2020

01-01-2021
Mathematics

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

solve for x under the assumption that xlt0 Enter your answer in interval notation using grouping symbols class=

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ChoiSungHyun ChoiSungHyun

01-01-2021

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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