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Let f(x) = ((x-3)(x+2)(x+5))/((x+1)(x-7)). Find the intervals where f(x) is positive or negative. i found out the answer in your website but my teacher told me that it was wrong can u please tell me another method

Let f(x) = ((x-3)(x+2)(x+5))/((x+1)(x-7)). Find the intervals where f(x) is positive or negative. i found out the answer in your website but my teacher told me that it was wrong can u please tell me another method

Grade:

5 Answers

Amit Bhatnagar
32 Points
10 years ago

it will be +ve in (-1,7)U(7,+∞)

and -ve in (-∞,-1)

Surbhi Kumari
29 Points
10 years ago

the answer or the interval is

(-5,-2)U(-1,3)U(7,infinity)

Surbhi Kumari
29 Points
10 years ago

to my knowlegde that should be the right answer.if it is not then can u justify or tell me ur answer

neha aggarwal
4 Points
10 years ago
neha aggarwal
4 Points
10 years ago

and plzzzz i asked for a method not answer everyone has answers for their problems not solution ...booo hhuuuu

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