Matematika Sekolah Menengah Pertama a = 4b = - 32ab² - 5a²b =a. -168b. 72c. 168d. 312​

johanparkerulv – March 10, 2023

a = 4
b = - 3
2ab² - 5a²b =

a. -168
b. 72
c. 168
d. 312​

2ab²-5a²b

2(4)(-3)² - 5(4)²(-3)

72 - 240

-168

Jawaban:

d. 312

Penjelasan dengan langkah-langkah:

2ab^2 - 5a^2b

2 × (4) × (-3)^2 - 5 × (4)^2 × (-3)

2 × (4) × (9) - 5 × (16) × (-3)

2 × 36 - 5 × -48

72 - -240

72 - (-240)

72 + 240

312

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