Which of the following represents the zeros of f(x) = 3x3 − 10x2 − 81x + 28? (2 points) Select one:
a. 7, −4,1 over 3
b. 7, −4, −1 over 3
c. 7, 4, 1 over 3
d. 7, 4, −1 over 3

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

just get this app called photo math it should be able to do those

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: