y=a(x-m)^2-a(x-m)怎样转换成y=(x-m-1/2)^2-a/4
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y=a(x-m)^2-a(x-m)怎样转换成y=(x-m-1/2)^2-a/4
y=a(x-m)^2-a(x-m)怎样转换成y=(x-m-1/2)^2-a/4
y=a(x-m)^2-a(x-m)怎样转换成y=(x-m-1/2)^2-a/4
y=a(x-m)^2-a(x-m)
=a(x-m)(x-m-1)
=a(x-m-1/2+1/2)(x-m-1/2-1/2)
=a[(x-m-1/2)^2-(1/2)^2]
=a(x-m-1/2)^2-a/4.
y=a(x-m)^2-a(x-m)怎样转换成y=(x-m-1/2)^2-a/4
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