15mn-3m^2dari120nm+15m^2n-20n
Matematika
Zahara55
Pertanyaan
15mn-3m^2dari120nm+15m^2n-20n
2 Jawaban
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1. Jawaban Milieth
120mn+15m²n-20n-(15mn-3m²)=120mn+15m²n-20n-15mn+3m²
=120mn-15mn+15m²n-20n+3m²
=105mn-20n+15m²n+3m² -
2. Jawaban ErikCatosLawijaya
Mapel : Matematika
Kelas : VII SMP
Bab : Aljabar
Pembahasan :
120mn + 15m²n - 20n
15mn - 3m²
———————————— (-)
= 105mn + 15m²n + 3m² - 20