1. Birhadlarni ko‘paytiring: (–5m²)(–7n)
A) 35m²n
B) –5m²n
C) –7m²n
D) –35m²n
E) 12m²n

2. Birhadlarni ko‘paytiring: (–3a³xy³)(4ax²y)
A) 12a⁴x³y⁴
B) –12a⁴x³y⁴
C) –12a³x³y³
D) 12a⁴x⁴y⁴
E) –12a³xy³

3. Birhadni darajaga ko‘taring: (–2x²y³)⁴
A) –8x²y³
B) 8x⁸y¹²
C) 16x⁸y¹²
D) –16x⁶y⁷
E) 8x⁶y⁷

4. Birhadni darajaga ko‘taring: (0,4a³b²)²
A) 0,8a³b²
B) 0,8a⁶b⁴
C) 0,16a⁵b⁴
D) 0,16a⁶b⁴
E) 0,16a³b²

5. Birhadni boshqa birhadning kubi shaklida yozing: –0,027x³y¹⁵
A) (–0,003xy⁵)³
B) 3(–0,009xy⁵)
C) 3(–0,009x³y¹⁵)
D) 3(–0,3xy⁵)³
E) (–0,3xy⁵)³