1.3a¯²b.2ab¯².2.4xy²z÷(-2x¯²yz¯¹)3.(-3ab¯¹)³4.(2m²n¯²)² .3m¯³n³.注:“¯¹ ¯² ¯³ " 代表负指数
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![1.3a¯²b.2ab¯².2.4xy²z÷(-2x¯²yz¯¹)3.(-3ab¯¹)³4.(2m²n¯²)² .3m¯³n³.注:“¯¹ ¯² ¯³](/uploads/image/z/11527842-66-2.jpg?t=1.3a%26macr%3B%26sup2%3Bb.2ab%26macr%3B%26sup2%3B.2.4xy%26sup2%3Bz%C3%B7%28%EF%BC%8D2x%26macr%3B%26sup2%3Byz%26macr%3B%26sup1%3B%293.%28%EF%BC%8D3ab%26macr%3B%26sup1%3B%29%26sup3%3B4.%282m%26sup2%3Bn%26macr%3B%26sup2%3B%29%26sup2%3B+.3m%26macr%3B%26sup3%3Bn%26sup3%3B.%E6%B3%A8%EF%BC%9A%E2%80%9C%26macr%3B%26sup1%3B+%26macr%3B%26sup2%3B+%26macr%3B%26sup3%3B+%22+%E4%BB%A3%E8%A1%A8%E8%B4%9F%E6%8C%87%E6%95%B0)
1.3a¯²b.2ab¯².2.4xy²z÷(-2x¯²yz¯¹)3.(-3ab¯¹)³4.(2m²n¯²)² .3m¯³n³.注:“¯¹ ¯² ¯³ " 代表负指数
1.3a¯²b.2ab¯².
2.4xy²z÷(-2x¯²yz¯¹)
3.(-3ab¯¹)³
4.(2m²n¯²)² .3m¯³n³.注:“¯¹ ¯² ¯³ " 代表负指数
1.3a¯²b.2ab¯².2.4xy²z÷(-2x¯²yz¯¹)3.(-3ab¯¹)³4.(2m²n¯²)² .3m¯³n³.注:“¯¹ ¯² ¯³ " 代表负指数
1.3a¯²b.2ab¯²=6a^(-2+1).b^(1-2)=6a^-1.b^-1.
2 4xy²z÷(-2x¯²yz¯¹)=(4/-2)*x^(1+2)*y^(2-1)*z^(1+1)=-2x^3y^1z^2.
3 (-3ab¯¹)³=(-3)^3*a^(1*3)b^(-1*3)=-27a^3b^(-3).
4 (2m²n¯²)² .3m¯³n³=4m^(2*2)n^(-2*2)*3m^(-3)n^3=4*3m^ (4-3)n^(-4+3)=12mn^(-1).
1, 6a-1b-3
2, -2x3yz2
3, -27a3b1-3
4, 6mn-1能帮写一下详细步骤吗? 谢谢1,(3x2)a(-2+1)b(1-2) 2, (4除以-2)x(1+2)y(2-1)z(1+1) 3, -27a(1×3)b(-1×3) 4, (2×3)m(2×2—3)n(-2×2+3) 字母后的括号...
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1, 6a-1b-3
2, -2x3yz2
3, -27a3b1-3
4, 6mn-1
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1.6a-1b-1