Question

12x^4 + 18x^3 + 3, does anyone know how to do this?

Answer 1

you want to factorise it????

Answer 2

its factoring out the GCF in polynomials

Answer 3

GCF is 3

Answer 4

because
12x^4 = 2*2*3*x^4
18x^3 = 2*3*3*x^3
3 = 3

So only 3 is common to all three terms

Answer 5

Pls click the GOOD ANSWER button to show appreciation and to mark the question as solved and closed :))

Answer 6

but i have multiple choice and the answers are a. 3x(4x^3 + 6x^2 + 1) b. 3(4x^4 + 6x^2) c. x(12x^3 + 18x^3 + 3) d. 3(4x^4 + 6x^3 + 1)

Answer 7

answer is d) 3(4x^4 + 6x^3 + 1)

Answer 8

thank you so much! this like litterally saved my life

Answer 9

see you follow the method i hv shown
after you separate out the GCF, you then see what is left for each one of the terms - this should come in the bracket

Answer 10

okay thanks

Answer 11

i hv answered the other question too..... pls check

Answer 12

idk how i just signed up for this thing today

Answer 13

u r welcome to the gang !!

Answer 14

Thanks!! but i have problems left to do on this test and they are worth so many pionts and if i fail getting these wrong then im screwed, i fail the whole test

Answer 15

u solve n post for us to confirm if your answer is ok or not
That way you will learn also and if u make a mistake we can correct it :))

Answer 16

but idk how to do the problem....i'll try and figure it out but i dont have much time

Answer 17

give me a problem and ill explain

better if you have a SKYPE account, we could have a voice chat and i can quickly teach you the method to follow

Answer 18

i dont have skype

Answer 19

ok then give a question n ill explain here

Answer 20

Find the roots by applying the zero-product theorem
33. 3(x + 2)(x – 5) = 0 34. x(3x – 6) = 0
this is what im doing

Answer 21

see once you put a value for x then (x+2) and (x-5) will reduce to a single number
say A and B

so 3(x+2)(x-5) =0 become 3*A*B = 0
This product can only become zero if either A is zero or B is zero.

Understood till now ???

Answer 22

yes i think so

Answer 23

see the basic thing is that if you are multiplying even ten numbers and one of them is zero the entire product is zero

so if A = 0 , this means that x+2=0 => x = -2
if B = 0, this means that x-5 = 0 => x = 5

so the two roots are x = -2 and x = 5

Answer 24

Got it ?????

Answer 25

If yes, you show how the second one is to be done and I'll say correct or not...

Answer 26

no i dont get it, im sorry, im probably wasting your time

Answer 27

i wish u had a SKYPE account...
Actually it takes hardly 10 minutes to open an account and install skype on your computer. If u cud do it, i cud explain it to you better.....

Answer 28

my parents said im not allowed to have skype even tho im 15, i wish i did too tho it would be alot better

Answer 29

well............. it cud always b used under supervision........