Question

The value 3 is an upper bound for the zeros of the function shown below.
f(x)=-3x³+20x²-36x+16

a. true
b. false

Answer 1

it's true ,
you had posted this question before also

Answer 2

it was false :( ah but it was a different question ..

Answer 3

sorry Mandy, you are correct it's false

Answer 4

you divide by(x-0) i.e x
the quotient will contain terms with alternating signs
for an upper bound, the quotient's terms will have same sign
so it's False