Question

Find the interval in which the function f(x) = x²+7x-60 is

Increasing.​

Answer 1

Step-by-step explanation:

Now,

x2−7x−60=0

or, x2−12x+5x−60=0

or, x(x−12)+5(x−12)=0

or, (x−12)(x+5)=0

or, x=12,−5

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