Question

what identity should I used in (F) PART I WILL ADD YOU ON BRAINLIST TOMMOROW IS MY EXAM PLEASE ANSWER ME PLEASE ANSWER ME PLEASE ANSWER ME PLEASE ANSWER ME PLEASE ANSWER ME PLEASE ANSWER ME PLEASE ANSWER ME ​

Answer 1

Answer:

question f can be written as:

(b^2 +a^2) (b^2 - a^2)

so the following identity can be used:

(a+b)(a-b) = a^2 - b^2