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Mathematics, 29.01.2021 22:20 shfhdjskjf

What is the solution of \frac{x^2-1}{x^2+5x+4} \leq 0 a) -4 -1
d) -4 < x ≤ 1 and x ≠ -1

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What is the solution of a) -4 -1
d) -4 < x ≤ 1 and x ≠ -1

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