SOLUTION: X2 - 2x- 15 < 0 solve the inequality algebraically

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Question 21196: X2 - 2x- 15 < 0 solve the inequality algebraically
Answer by venugopalramana(3286) About Me  (Show Source):
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X2 - 2x- 15 < 0 solve the inequality algebraically
X2 - 5X + 3X -15 <0
X(X-5)+3(X-5)<0
(X+3)(X-5)<0
FOR THE PRODUCT TO BE NEGATIVE ONE OF THE FACTORS SHOULD BE POSITIVE AND THE OTHER SHOULD BE NEGATIVE HENCE X SHOULD BE BETWEEN -3 AND 5...SO THE DOMAIN OF X SHOULD BE
............-3 < x < 5