a-²b-³·﹙-3a﹣¹b﹣²﹚÷6a﹣⁴b﹣²的结果是?请带上过程.(-²这个是负二次方,其余的也是这样)
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/06 02:18:55
![a-²b-³·﹙-3a﹣¹b﹣²﹚÷6a﹣⁴b﹣²的结果是?请带上过程.(-²这个是负二次方,其余的也是这样)](/uploads/image/z/746230-22-0.jpg?t=a-%26%23178%3Bb-%26%23179%3B%C2%B7%EF%B9%99-3a%EF%B9%A3%26%23185%3Bb%EF%B9%A3%26%23178%3B%EF%B9%9A%C3%B76a%EF%B9%A3%26%238308%3Bb%EF%B9%A3%26%23178%3B%E7%9A%84%E7%BB%93%E6%9E%9C%E6%98%AF%3F%E8%AF%B7%E5%B8%A6%E4%B8%8A%E8%BF%87%E7%A8%8B.%28-%26%23178%3B%E8%BF%99%E4%B8%AA%E6%98%AF%E8%B4%9F%E4%BA%8C%E6%AC%A1%E6%96%B9%2C%E5%85%B6%E4%BD%99%E7%9A%84%E4%B9%9F%E6%98%AF%E8%BF%99%E6%A0%B7%29)
x͒JPo@Eε-m;v. n QN#$
mjy+;gBce`;{=GguaqAZW372V5T/N}b*j_]ZwZȾs?.xRl!~/:|uL:MMܲ5#Eo,wA&K17IigLBg
C>*:5>~'#0lLpɵQ6*?hݼ
g}A0*
@z$)Ji~ (.G4T!iţ{䁳xD&2VX=J||UbtqzO]E&ouHN^/Obq
a-²b-³·﹙-3a﹣¹b﹣²﹚÷6a﹣⁴b﹣²的结果是?请带上过程.(-²这个是负二次方,其余的也是这样)
a-²b-³·﹙-3a﹣¹b﹣²﹚÷6a﹣⁴b﹣²的结果是?
请带上过程.
(-²这个是负二次方,其余的也是这样)
a-²b-³·﹙-3a﹣¹b﹣²﹚÷6a﹣⁴b﹣²的结果是?请带上过程.(-²这个是负二次方,其余的也是这样)
=-1/2ab-³
就是同底数幂的乘法和除法性质:同底数的幂相乘,底数不变指数相加,同底数的幂相底数不变指数相减.
a -² b -³ (- 3 a -³ b -²)÷ (6 a -⁴ b -²)
= - 3 a ^ (- 2 - 3) b ^ (- 3 - 2) ÷ 6 a -⁴ b -²
= (- 3 ÷ 6) a ^ (- 5 -(- 4))b ^ (- 5 -(- 2))
= (- 1 / 2)a ^ (- 5 + 4)b ^ (- 5 + 3)
= - 1 / 2 a ^ (- 1)b -²
答案是负2乘以ab的负三次方