Question

28- Solve P4-8p?q?+16q4-121​

Answer 1

Step-by-step explanation:

p4 - 8p2q2 + 16q4 - 121

(p^2)^2 - 8p2q2 + ((2q)^2)^2 - 121

(p^2)^2 - 2(p2) (4q2) + 4q^2 - 11^2

p^2 - q^2 - 11^2

(p-q)^2 - 11^2

{(p-q)+11} {(p-q) -11}

(p-q+11 ) (p-q-11)

(p-q-11) (1+1)

2(p-q-11)

2p - 2q - 22