Question

factor polynomial completely b^3-4b

Answer 1

first divide by b what do you have

Answer 2

I should say factor out b to get b(b^2 -4)
do you recognize b^2 - 4 as the difference of 2 squares?

Answer 3

b has a 1 in front of it but i dont know how to express them as a bionomial

Answer 4

think about (a^2 - b^2) = (a + b)(a-b) and apply to your problem

Answer 5

yes i do

Answer 6

so the answer would be (b-4)(b+4) ?

Answer 7

the complete factorization
b(b + 2)(b-2)

Answer 8

if x^2 =4 then x = sqrt of 4 = +2/-2

Answer 9

you forgot to take the sqrt

Answer 10

oh ok thanks

Answer 11

you are welcome