Question

Tentukan hasil Kali 2 bilangan bulat yg jumlahnya -56 Dan selisihnya 4

Answer 1

A + b = -56
a - b = 4
----------------- +
2a = -52
a = -26

a - b = 4
-26 - b = 4
-b = 4 + 26
-b = 30
b = -30

a x b = -26 x -30 = 780

Answer 2

A + b = -56 a - b = 4 ----------------- + 2a = -52 a = -26 a - b = 4 -26 - b = 4 -b = 4 + 26 -b = 30. b = -30 a x b = -26 x -30 = 780