Question

Determine the domain and zeros of the function, and determine intervals where the function is positive and/or negative:

P(x)=(x+6)(x-5)

Answer 1

given: A*B =0, we can say that either A or B equals zero

Answer 2

or both

Answer 3

domain is all real number set , zeros are x=-6, x=5 , the function is positive in (-infinity,-6)U(5,+infinity) and negative in (-6,5)