Question

(p+q-2r)(2p-q+r)-4qr???????????????​

Answer 1

Given: The term (p+q-2r)(2p-q+r)-4qr

To find: The value of the given term.

Solution:

• Now we have given the term (p+q-2r)(2p-q+r)-4qr.

• Expanding it, we get:

                   2p² - pq + pr + 2pq - q² + qr - 4rp + 2rq - 2r² - 4qr

• Now taking common terms together, we get:

                   - pq + 2pq + pr - 4rp + qr + 2rq - 4qr + 2p² - q² - 2r²

• Now solving it, we get:

                   2p² - q² - 2r² + pq - 3pr - qr

Answer:

             So the value of the given term is 2p² - q² - 2r² + pq - 3pr - qr.

Answer 2

Answer:

Given: The term (p+q-2r)(2p-q+r)-4qr

To find: The value of the given term.

Solution:

Now we have given the term (p+q-2r)(2p-q+r)-4qr.

Expanding it, we get:

                   2p² - pq + pr + 2pq - q² + qr - 4rp + 2rq - 2r² - 4qr

Now taking common terms together, we get:

                   - pq + 2pq + pr - 4rp + qr + 2rq - 4qr + 2p² - q² - 2r²

Now solving it, we get:

                   2p² - q² - 2r² + pq - 3pr - qr

Answer:

             So the value of the given term is 2p² - q² - 2r² + pq - 3pr - qr.

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