Question

Hi can anyone assist me factor this x^3 -9x^2

Answer 1

what do u wanna do with this?

Answer 2

x^3-9x^2=0 ???

Answer 3

basically, is just to factorize it

Answer 4

what do you think is the common term

Answer 5

has no equals at the end, i find it confusing

Answer 6

in x^3 and 9x^2 what can you take out

Answer 7

no equals implies that it is just an expression
when you have an equals sign it is an equation

Answer 8

I am thinking 3 is common to both terms
yes it's an equation

Answer 9

if you have trouble seeing it like this
try seeing it like this
x* x* x - 9 x* x

Answer 10

so on the left is x^3 and on the right is x^2

Answer 11

yeah right

Answer 12

what is common ?

Answer 13

x is common

Answer 14

bingo next step how many x's are common

Answer 15

2 pairs of x?

Answer 16

YES!!!

Answer 17

so i will just take the two pairs of x out
x*x (x-9) => x*x is just x^2
x^2(x-9)

Answer 18

do you get what i did this is very basic stuff, factoring gets harder so let me know if you didnt get it

Answer 19

i'm sorry that confused me a bit

Answer 20

its ok dw about it

Answer 21

x*x*x=> x^3
9*x*x=>9x^2

Answer 22

following me?

Answer 23

yes i get that

Answer 24

if you kinda line up the x s you will see that two of the xs are common right?

Answer 25

yes sure

Answer 26

x^3=x^2(x)
9x^2=x^2(9)
back to our equation we plugin the above
x^3-9x^2
becomes
x^2(x)-x^2(9)

Answer 27

since x^2 is common we factor it out and it becomes x^2(x-9)

Answer 28

okay i got that on my worksheet, just didnt know how i got it

Answer 29

??

Answer 30

you can not guess answers in math you must be sure of what you are doing

Answer 31

explain to me what you are doing and i will correct you

Answer 32

just the working was different

Answer 33

do explain

Answer 34

dont worry everywhere is here to learn =)

Answer 35

im not judging you i just wanna make sure you are doing it right

Answer 36

anyway i have stuff of my own to do essentially for factoring you wanna find what is common between the terms and take it out =) goodluck