Must show all the work step by step. 2. Let g(x)=x + 1x² - 4(a) The following is the graph of g(x). Use this to answer the following questions.i. On which interval(s) is g(x) > 0?ii. On which interval(s) is g(x) <0?(b) Use algebra (meaning a sign diagram/number line) to answer the following.i. On which interval(s) isx + 1x²4ii. On which interval(s) is> 0?x+1x² - 4<0? Complete the problems in their entirety. Show all necessary work.1. Let f(x) = x³ + 3x² - x - 3= (x − 1)(x + 1)(x+3).(a) The following is the graph of f(x). Use this to answer the following questions.i. On which interval(s) is f(x) > 0?ii. On which interval(s) is f(x) <0?(b) Use algebra (meaning a sign diagram/number line) to answer the following.i. On which interval(s) isii. On which interval(s) is(x - 1) (x + 1) (x+3) >0?(x - 1)(x + 1) (x + 3) <0?

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Complete the problems in their entirety. Show all necessary work. 1. Let f(x) = x³ + 3x² - x - 3= (x − 1)(x + 1)(x+3). (a) The following is the graph of f(x). Use this to answer the following questions. i. On which interval(s) is f(x) > 0? ii. On which interval(s) is f(x) < 0? (b) Use algebra (meaning a sign diagram/number line) to answer the following. i. On which interval(s) is ii. On which interval(s) is (x − 1)(x + 1)(x+3) > 0? (x - 1)(x + 1)(x + 3) <0?