Пж решите!!!!!!!!!!!!!!******

Question

Пж решите!!!!!!!!!!!!!!******

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Answer 1

- 5x^2 + 45 > 0  // : 5
- x^2 + 9 > 0 
x^2 - 9 < 0 
(x - 3)(x + 3) < 0 
x ∈ ( - 3; 3)