A.-5a²(2a²+8a²b-5ab²) B.(2y-5) (2y+3)
Matematika
meliadwiiranda
Pertanyaan
A.-5a²(2a²+8a²b-5ab²)
B.(2y-5) (2y+3)
B.(2y-5) (2y+3)
1 Jawaban
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1. Jawaban dnnyz07
Aljabar
a)
-5a² ( 2a² + 8a²b - 5ab²)
= (-5a²)(2a²) + (-5a²)(8a²b) + (-5a²)(-5ab²)
= -10a⁴ - 40a⁴b + 25a³b²
b)
(2y - 5)(2y + 3)
= 4y² + 6y - 10y - 15
= 4y² - 4y - 15