(1)16-(2a+3b)²(2)-36x²+12xy-y²(3)4x(a-b)-8y(b-a)4)(x²-5)²+(x²-5)+16
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 18:47:09
(1)16-(2a+3b)²(2)-36x²+12xy-y²(3)4x(a-b)-8y(b-a)4)(x²-5)²+(x²-5)+16
(1)16-(2a+3b)²(2)-36x²+12xy-y²(3)4x(a-b)-8y(b-a)
4)(x²-5)²+(x²-5)+16
(1)16-(2a+3b)²(2)-36x²+12xy-y²(3)4x(a-b)-8y(b-a)4)(x²-5)²+(x²-5)+16
您好:
(1)16-(2a+3b)²
=(4+2a+3b)(4-2a-3b)
(2)-36x²+12xy-y²
=-(36x²-12xy+y²)
=-(6x-y)²
(3)4x(a-b)-8y(b-a)
=4x(a-b)+8y(a-b)
=4(a-b)(x+2y)
4)(x²-5)²+8(x²-5)+16
=(x²-5+4)²
=(x²-1)²
=(x+1)²(x-1)²
如果本题有什么不明白可以追问,如果满意记得采纳
如有其它问题,采纳本题后另发向我求助,答题不易,请谅解,谢谢.
祝学习进步!