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因式分解：a²+4a（b+c）+4（b+c）²
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完成下列因式分解分解要彻底哦a3﹣4a2+4a
因式分解______________
因式分解4a2－16
因式分解﹣4a3+8a2﹣4a
因式分解4ab2—4a2b—b3
因式分解4a3b﹣16ab3
分解因式4a2bc－3a2c2＋8abc－6ac2
因式分解4a2﹣25b2
因式分解=▲.
因式分解4a3-12a2+9a=.
因式分解4a2－16=.
因式分解a2+12-4a2.
因式分解a2+b22﹣4a2b2
因式分解ax2﹣4a
因式分解:ax2-4a=
因式分解.
下列式子从左到右变形是因式分解的是
a
2
+4a﹣21=a（a+4）﹣21
a
2
+4a﹣21=（a﹣3）（a+7）
（a﹣3）（a+7）=a
2
+4a﹣21
a
2
+4a﹣21=（a+2）
2
﹣25
因式分解4a2-16
在实数范围内因式分解4a4﹣9.
把代数式4a2b﹣3b24a﹣3b进行因式分解得.
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