# 10. Find the maximum value of in the interval [1, 3]. Find the the maximum value of the same function in [–3, –1].

Given function is

we neglect the value x =- 2 because
Hence, x = 2  is the only  critical value  of function
Now, we need to check the value at x = 2 and at the end points of given range i.e. x = 1 and x = 3

Hence, maximum value of function    occurs at x = 3 and vale is 89  when
Now, when
we neglect the value x = 2
Hence, x = -2  is the only  critical value  of function
Now, we need to check the value at x = -2 and at the end points of given range i.e. x = -1 and x = -3

Hence, the maximum value of function    occurs at x = -2 and vale is 139  when

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