Question

1. (X + 2)³ =
2. (2y - 3)⁴ =

jawab plx lulz

Answer 1

Pakai segitiga pascal ya..
1. (x+2)³ = 1. (x)³ (2)° + 3. (x)² (2)¹ + 3. (x)¹ (2)² + 1. (x)° (2)³
= 1. x³. 1 +3. x². 2+ 3. x. 4+ 1. 1. 8
=x³+6x²+12x+8
2. (2y-3)⁴ = 1. (2y)⁴ (-3)° +4. (2y)³ (-3)¹ +6. (2y)² (-3)² + 4. (2y)¹ (-3)³ + 1. (2y)° (-3)⁴
= 1. 2y⁴. 1 +4. 8y³. -3+6. 4y². 9 + 4. 2y. -27+1. 1. 81
= 16y⁴-96y³+216y²-216y+81

Maaf ya kalau salah ^^

Eh ya, tadi aku edit sedikit btw~

:v