What can you multiply by 3 and add 2 to get -19?
1 answer:
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Answer:
The sum of the terms is equal to .
The value of the sum at is 0.
Step-by-step explanation:
Given:
The terms that are given are:
The sum of the terms is the addition of the given terms and is given as:
Now, combining like terms. Like terms means that are of the same type are grouped together. There are 3 different terms here 'r²', 'r' and 's'.
The terms containing 'r²' are:
The terms containing 'r' are:
The terms containing 's' are:
Now, combining the like terms, we get:
Therefore, the final expression is equal to:
Now, plug in . This gives,
Therefore, the value of the sum of all the terms at is 0.