Question

(ax-ay+bx-by)sama dengan..
a.(x+y)(a+b)
b.(x+y)(a-b)
c.(x-y)(a+b)
d.(x-y)(a-b)

Answer 1

Jawaban yang benar c

Answer 2

A. (x+y) (a+b)
 = ax +bx +ay +by
b. (x+y) (a-b)
 = ax -bx +ay -by
3. (x-y) (a+b)
 = ax +bx -ay -by
4. (x-y) (a-b)
 = ax -bx -ay +by