Question

[1] Simplify: (3k - 2r + 4s)2 + ( 3k + 2r - 4s)² ​

Answer 1

Answer:

(3k - 2r + 4s)2 = 6k-4r+8s

( 3k + 2r - 4s)² ​= 9k^2-12kr+24ks+32s^2-8sr+4r^2

6k-4r+8s+9k^2-12kr+24ks+32s^2-8sr+4r^2 = 9k^2+4r^2+24ks-12kr+8s-8sr+6k-4r

Step-by-step explanation:

9k^2+4r^2 = a^2+b^2

24ks-12kr = 12k(s-r)

8s-8sr = 8s(1-r)

6k-4r = 2(3k-2r)