(a+b-c+d)^2 - (a-b+c-d)^2 ?

Question

Answer 1

(a+b-c+d)²-(a-b+c-d)²=
a+b-c+d+a-b+c-d=2a
a+b-c+d-a+b-c+d=2b-2c+2d
4a(b-c+d)

Answer 2

(a+b-c+d)²-(a-b+c-d)²=
a+b-c+d+a-b+c-d=2a
a+b-c+d-a+b-c+d=2b-2c+2d
4a(b-c+d)

Answer 3

let x=b-c+d
Then,
(a+b-c+d)² - (a-b+c-d)²
=(a+x)² - (a-x)²
=4ax
=4a(b-c+d)
=4ab-4ac+4ad

Answer 4

let x=b-c+d
Then,
(a+b-c+d)² - (a-b+c-d)²
=(a+x)² - (a-x)²
=4ax
=4a(b-c+d)
=4ab-4ac+4ad

Answer 5

Hare Krishna Hare Krishna Krishna Krishna Hare Hare
Hare Ram Hare Ram Ram Ram Hare Hare

Answer 6

Hare Krishna Hare Krishna Krishna Krishna Hare Hare
Hare Ram Hare Ram Ram Ram Hare Hare

Answer 7

4a^2+4ab-4ac

Answer 8

4a^2+4ab-4ac