Question

The sum of 4p²-7pq+q² and -9p² + 4pq-q² is​

Answer 1

Step-by-step explanation:

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Answer 2

- 5p² - 3pq

Step-by-step explanation:

QUESTION :-

The sum of 4p² - 7pq + q² and - 9p² + 4pq - q² is

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SOLUTION :-

Sum of 4p² - 7pq + q² and -9p² + 4pq - q²

=> (4p² - 7pq + q²) + (-9p² + 4pq - q²)

=> 4p² - 7pq + q² - 9p² + 4pq - q²

[now, arrange the terms]

=> 4p² - 9p² - 7pq + 4pq + q² - q²

=> (4-9)p² + (-7+4)pq + 0

=> - 5p² - 3pq

Hence,

The answer is -5p² - 3pq.

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Note :-

We only add or subtract the terms, when their powers and consonants are same.

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