Question

8y^3 - 3y^3

Answer 1

Firstly tell me what is: 8- 3 = ??

Answer 2

5

Answer 3

i know the answer but i don't get how

Answer 4

So attach y^3 with it..

Answer 5

shouldn't it be just y

Answer 6

y^3-y^3

Answer 7

I am explaining you..
Just wait..

Answer 8

ok

Answer 9

see:

first you know about like terms :

5x, 6x, (1/3)x they are all like terms..

\[6y^2, 7y^2, 8y^2, \frac{1}{5}y^2\] they all are like terms..


Similarly:

\[\large 8y^3 - 3y^3\] is like term

getting this much ??

Answer 10

yup..learned that

Answer 11

So can you factor them or not??

Answer 12

like:

\[\large 8y^3 - 3y^3 = y^3(8-3)\]

Answer 13

ya

Answer 14

This step is getting??

I have taken the common term outside..

Answer 15

yes you have

Answer 16

\[\large 8y^3 - 3y^3 = y^3(8-3) \implies y^3(5)\]

this step you got??

Answer 17

I have just solved the brackets...

Answer 18

yes ok i get it................thanks

Answer 19

Welcome dear..

Answer 20

In case of like terms just solve them as you are solving real values like 4 - 5 or 5-3 like this..

Simple add or subtract them..

Answer 21

No they are not like terms..

Answer 22

there must be y with 5 also..

Then you can subtract them..

Answer 23

you always take the like terms out?

Answer 24

But there is not y attached to the 5..

if it was:

8y - 5y \(\implies\) 3y

Answer 25

got it

Answer 26

There is no need but to explain you I have taken common that y^3..

Answer 27

ok...thanks:)

Answer 28

Welcome dear..

Answer 29

bi