What is the quotient? (x+1)3x^2-2x+7

Find the equation using the point (4,8)

Answer! if you don’t mind, can you explain

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0