神马作文网16(x-1)^2=225因式分解法,
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16(x-1)^2=225因式分解法,
16(x-1)^2=225
[4(x-1)]^2 -225 =0
(4x-4)^2 - 15^2 =0
(4x-4+15)(4x-4-15) =0
(4x+11)(4x-19) =0
x = -11/4,x = 19/4
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[4(x-1)]^2 -225 =0
(4x-4)^2 - 15^2 =0
(4x-4+15)(4x-4-15) =0
(4x+11)(4x-19) =0
x = -11/4,x = 19/4
~ 满意请采纳,不清楚请追问.
--------------------
~ 梳理知识,帮助别人,愉悦自己.
~ “数理无限”团队欢迎你
~ http://zhidao.baidu.com/team/view/%CA%FD%C0%ED%CE%DE%CF%DE