Question

Find domain in interval notation:
p(x)= 8x
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x^2-144

Answer 1

x^2-144 should not be 0 cuz its in the denominator
i.e x must not be eqyal to + or - 12
that means domain is (-12, 12)

Answer 2

Okay but what about showing work?

Answer 3

Actually that means the domain is everywhere (all reals) except -12 or 12

Answer 4

Great, but can anyone show work please?!

Answer 5

The work is mostly shown, what's left is an exercise for you. Generally, the only suspicious point, as they call it is the denominator. so you said the denominator x^2-144=0 Solve for x, it is the difference of two squares.