Question

Dua bilangan cacah berbeda 5 dan hasil kalinya 374 bilangan cacah terbesar adalah...
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Answer 1

Bilangan pertama = a
bilangan kedua = b

beda 5
a - b = 5
a = b + 5

hasil kali 374
a x b = 374
(b+5) x b = 374
b² + 5b = 374
b² + 5b - 374 = 0
(b + 22) (b - 17) = 0
b + 22 = 0 | b - 17 = 0
b = - 22 | b = 17

bilangan b terbesar = 17
bilangan a =
a = b + 17
a = 22