1. sederhanakan bentuk aljabar berikut. a. (11× + 8) - 2(4× - 5) b. -2 (4× - 5) - 2(-× + 5) 2. tentukan KPK dan FPB dari bentuk aljabar berikut. a. 12p²q³ dan 1

1.
a.
(11x + 8) - 2(4x - 5)
= 11x + 8 - 8x + 10
= 11x - 8x + 8 + 10
= 3x + 18

b.
- 2(4x - 5)- 2(- x + 5)
= - 8x + 10 + 2x - 10
= - 8x + 2x + 10 - 10
= - 6x

2.
a.
12p²q³ = 2² × 3 × p² × q³
18pq²r³ = 2 × 3² × p × q² × r³

KPK = 2² × 3² × p² × q³ × r³
KPK = 4 × 9p²q³r³
KPK = 36p²q³r³

FPB = 2 × 3 × p × q² × r³
FPB = 6pq²r³

b.
12pq²r = 2² × 3 × p × q² × r
24pqr² = 2³ × 3 × p × q × r²
30p²q²r = 2 × 3 × 5 × p² × q² × r

KPK = 2³ × 3 × 5 × p² × q² × r²
KPK = 8 × 3 × 5p²q²r²
KPK = 120p²q²r²

FPB = 2 × 3 × p × q × r
FPB = 6pqr

Maaf Kalau Salah