a³b·﹙-4a³b﹚a²bⁿ·﹙-⅓aⁿb³﹚-7/4a²bc·4/7ab²c·﹙-5ab﹚
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 10:17:31
![a³b·﹙-4a³b﹚a²bⁿ·﹙-⅓aⁿb³﹚-7/4a²bc·4/7ab²c·﹙-5ab﹚](/uploads/image/z/3893829-69-9.jpg?t=a%26%23179%3Bb%C2%B7%EF%B9%99-4a%26%23179%3Bb%EF%B9%9Aa%26%23178%3Bb%26%238319%3B%C2%B7%EF%B9%99-%26%238531%3Ba%26%238319%3Bb%26%23179%3B%EF%B9%9A-7%2F4a%26%23178%3Bbc%C2%B74%2F7ab%26%23178%3Bc%C2%B7%EF%B9%99-5ab%EF%B9%9A)
a³b·﹙-4a³b﹚a²bⁿ·﹙-⅓aⁿb³﹚-7/4a²bc·4/7ab²c·﹙-5ab﹚
a³b·﹙-4a³b﹚
a²bⁿ·﹙-⅓aⁿb³﹚
-7/4a²bc·4/7ab²c·﹙-5ab﹚
a³b·﹙-4a³b﹚a²bⁿ·﹙-⅓aⁿb³﹚-7/4a²bc·4/7ab²c·﹙-5ab﹚
a³b·﹙-4a³b﹚
=-4a^6b^2;
a²bⁿ·﹙-⅓aⁿb³﹚
=(-1/3)a^(n+2)b^(n+3);
-7/4a²bc·4/7ab²c·﹙-5ab﹚
=-a^3b^3c^2×(-5ab)
=5a^4b^4c^2;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,