Question

factorising p^2-4pq+4q^2-r^2​

Answer 1

Answer:

(p-2q+r)(p-2q-r)

Step-by-step explanation:

p^2-4pq+4q^2-r^2

=p^2-2(p)(2q) +(2q) ^2-r^2

=(p - 2q) ^2 -(r) ^2

=(p-2q+r) (p-2q-r)