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Find-tbe-sloution-set-of-5-x-3-3-x-gt-0-




Question Number 12631 by 786786AM last updated on 27/Apr/17
  Find tbe sloution set of (5/((x−3)(3+x))) > 0.
$$\:\:\mathrm{Find}\:\mathrm{tbe}\:\mathrm{sloution}\:\mathrm{set}\:\mathrm{of}\:\frac{\mathrm{5}}{\left(\mathrm{x}−\mathrm{3}\right)\left(\mathrm{3}+\mathrm{x}\right)}\:>\:\mathrm{0}. \\ $$
Answered by mrW1 last updated on 27/Apr/17
(x−3)(x+3)>0  x^2 −3^2 >0  x^2 >3^2   ∣x∣>3  x<−3 or x>3
$$\left({x}−\mathrm{3}\right)\left({x}+\mathrm{3}\right)>\mathrm{0} \\ $$$${x}^{\mathrm{2}} −\mathrm{3}^{\mathrm{2}} >\mathrm{0} \\ $$$${x}^{\mathrm{2}} >\mathrm{3}^{\mathrm{2}} \\ $$$$\mid{x}\mid>\mathrm{3} \\ $$$${x}<−\mathrm{3}\:{or}\:{x}>\mathrm{3} \\ $$

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