C)1.2y^2 + 1.2z
Stacey Warren - Expert brainly.com
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Just a matter of combining like terms. Do you know what like terms are ?
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 ?
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y + 1.2y + 1.2z
like terms have the same exact letter...what are the like terms ?
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