1.(-3mn² · m²)³2.(-a³)² · a³ + (-a²)× a^7 - (2a³)³3.(-3a²)³ + (2a³)²4.(3又1/3)^5 × (-3/10)^4 × 3/55.(-3x²y²)×(-2/3xyz)3/4×z

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1.(-3mn² · m²)³2.(-a³)² · a³ + (-a²)× a^7 - (2a³)³3.(-3a²)³ + (2a³)²4.(3又1/3)^5 × (-3/10)^4 × 3/55.(-3x²y²)×(-2/3xyz)3/4×z
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1.(-3mn² · m²)³2.(-a³)² · a³ + (-a²)× a^7 - (2a³)³3.(-3a²)³ + (2a³)²4.(3又1/3)^5 × (-3/10)^4 × 3/55.(-3x²y²)×(-2/3xyz)3/4×z
1.(-3mn² · m²)³
2.(-a³)² · a³ + (-a²)× a^7 - (2a³)³
3.(-3a²)³ + (2a³)²
4.(3又1/3)^5 × (-3/10)^4 × 3/5
5.(-3x²y²)×(-2/3xyz)3/4×z²
6.3xy × (5x²y-7xy-1)
7.a(b-c)-bc × (-a)+(ca-b)
8.-2x^n ×(-3x^n+1+4x^n-1)
9.(2x-7y)(3x+4y-1)
10.-a^n(a^n+1 -a^n +a^n-1 -2)
11.x(x²-x)+x²(5-x)-9
分都给你们了
能做几个做几个 越多越好

1.(-3mn² · m²)³2.(-a³)² · a³ + (-a²)× a^7 - (2a³)³3.(-3a²)³ + (2a³)²4.(3又1/3)^5 × (-3/10)^4 × 3/55.(-3x²y²)×(-2/3xyz)3/4×z
3.-23a的6次方

11.4x²-9