Question

factor a^3-3+3a^2-a
I think the answer is (a-1)(a+1)(a+3)

Answer 1

help @Susan9419 please

Answer 2

you can check by using the factor theorem

let a = 1 a = -1 and a = -3

and substitute

if the solution to each is zero then you have a factor

here is the 1st one..

well find f(1) = (1)^3 + 3(1)^2 - 1 - 3
= 0

so (a - 1) is a factor

repeat the process to check your other factors.

Answer 3

f(-1)= (-1)^3+3(-1)^2-1-3
is that how u do it

Answer 4

so f(-1) = -1 + 3 - (-1) - 3

= 0

so (a + 1) is a factor

just watch the signs...

Answer 5

f(1)=(1)^3+3(1)^2-2-3

Answer 6

so am I right or rong

Answer 7

help me @goformit100

Answer 8

you are correct...

Answer 9

thank u will u help me again

Answer 10

post the question in the normal way and I'll look at it