Question

Tentukan hasil dari. (a-b)2=....

Answer 1

= (a - b) (a - b)
= a^2 - 2ab + b^2

Check;
a = 4, b = 2
= (4 - 2)^2
= 4
Sedangkan:
= 4^2 - 2(4x2) + 2^2
= 16 - 16 + 4
= 4

Answer 2

(a-b)2= a kuadrat - 2ab + b kuadrat