Question

Jika 9y(ay-3)=45y²+by, nilai dari a-b=...
Jawab cepat buat besokkk..

Answer 1

Verified answer

9y(ay-3)=45y²+by
9ay²-27y=45y²+by

jadi 9a=45
a=5
-27=b

a-b=5-(-27)=32

Answer 2

Persamaan

9y(ay - 3) = 45y² + by
9ay² - 27y = 45y² + by

Perhatikan kesamaan tempat
9ay² = 45y²
9a = 45
a = 5 ✔

-27y = by
b = -27 ✔

•••
a - b
= 5 - (-27)
= 32 ✔