1. 8d – (2d-5e)
2. 9f – 5f (3-2f)
Jawaban Terkonfirmasi
No. 1: 8d -(2d-5e)= 8d (-2d+5e)=-16d²+40 de No. 2. 9f-5f(3-2f)= 4f(3-2f)= 12f-8f²
1.
= 8d – (2d-5e)
= -16d2 – 40ed
2.
= 9f -5f (3-2f)
= 27f – 18f2 – 15f +10f2
= 27f – 15f – 18f2 + 10f2
= 12f – 8f2