Question

please solve first one​

Answer 1

Answer:

hey mate here is your answer

(a^2 - b^2)^2 - (4c)^2 + 16c^2 + (a^2 + b^2)^2 - 2a^4 -2b^4

a^4 + b^4 - 2(ab)^2 - 16cc + 16cc + a^4 + b^4 + 2(ab)^2 - 2a^4 - 2b^4

all terms are cancled

so answer is 0

hope it's helps u