Question

find the product: 1) (pq-2r) (pq-2r)
solve it by this method
2r(pq-2r)+pq(pq-2r)
answer is p²q²-4pqr+4r²
solve and send ​

Answer 1

Answer:

Don't forget to open the brackets with signs otherwise your answer will go wrong.

Hope this helps!!