Question

(y + z)^3

Answer 1

try to write it this way \((y+z)^3=(y+z)(y+z)^2\)

Answer 2

do you know how to do \((y+z)^2\)

Answer 3

Yeah ..let me try it

Answer 4

good!

Answer 5

what did you get?

Answer 6

=y^3+3y^2z+3yz^2+z^3

Answer 7

oh you are taking it one step forward i just asked for (y+z)^2

Answer 8

Oh haha okay so i distibuted that to

Answer 9

well your answer is correct I'm not saying no
just if you want to remember it all the time

Answer 10

=(y)(y2)+(y)(2yz)+(y)(z2)+(z)(y2)+(z)(2yz)+(z)(z2)Oh okay

Answer 11

just fyi it is always the case that \[(a+b)^3=a^3+3a^2b+3ab^2+b^3\]

Answer 12

yes good :) i wonder why do you have problem with this ?

Answer 13

your answers are good

Answer 14

Oh cuz i'm still learning the rules at somepoint i forget someof them..