解16(x+5)^2-8(x+5)=0
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解16(x+5)^2-8(x+5)=0
解16(x+5)^2-8(x+5)=0
解16(x+5)^2-8(x+5)=0
直接得两个方程X+5=0或者16(X+5)-8=0
X=-5或者X=-9/2
(4(x+5)-2)^2-4=0则
4(x+5)-2=2或4(x+5)-2=-2
x=-4,或x=-5
!
16(x+5)^2-8(x+5)=0
(x+5)[16(x+5)-8]=0
x+5=0, [16(x+5)-8]=0
x=-5,x=-4.5
+5=0或者16(X+5)-8=0
X=-5或者X=-9/2
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