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Verified answer
MAPEL = MATEMATIKAKELAS = 8
BAB = OPERASI HITUNG ALJABAR
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Verified answer
Soal(2xz + 3y)(4xz - 15y) = ...
Penyelesaian
(2xz + 3y)(4xz - 15y)
=> (2xz × 4xz) - (2xz × 15y) + (3y × 4xz) - (3y × 15y)
=> 8xz^2 - 30xzy + 12xzy - 45y^2
=> 8xz^2 - 18xzy - 45y^2.