Question

simplify (p+q-2r)(2p-q+r)-4qr
Answer fast please​

Answer 1

Answer:

Answer

(p+q−2r)(2p−q+r)−4qr = p(2p−q+r)+q(2p−q+r−2r(2p−q+r−4qr=2p2−pq+pr+2pq−q

2 +qr−4pr+2qr−2r 2 −4qr = 2p

2−q2−2r2+pq−3pr−2qr

Answer 2

Answer:

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

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