Question

2) y+1.2y+1.2z
A) 2.4yz
B)1.3y+1.2z
C)1.2y^2 + 1.2z
D)2.2y+1.2z

Answer 1

Just a matter of combining like terms. Do you know what like terms are ?

Answer 2

no

Answer 3

For example :
2x + 3x -- these are like terms, they have exactly the same letters...you can add/subtract these.
you cannot add/subtract unlike terms.
these are unlike terms...
2x + 3y......or 4x + 5....

so we need to find our like terms and add/subtract them. Can you find the like terms ?

Answer 4

A?

Answer 5

no...
y + 1.2y + 1.2z

like terms have the same exact letter...what are the like terms ?

Answer 6

B?

Answer 7

quit guessing...
let me explain this one for you....
like terms have the exact same letters...
y and 1.2y are you like terms. And whenever you have a letter without a number, it is 1.
So we have 1y + 1.2y .....added = 2.2y. Now we cannot forget about our z term...just because it has no like terms to add to it, we still have to put it in there.
So our answer is : 2.2y + 1.2z
questions ?

Answer 8

ok thank you

Answer 9

sure thing :)