已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值

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已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值

已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值
已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值

已知log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值
log3(x-2y)+log3(x+2y)=1+log3x+log3y,求log2x-log2y的值
log3(x-2y)(x+2y)=log3(3)+log3x+log3y
log3x^2-4y^2=log3(3xy)
x^2-4y^2=3xy
(x-4y)(x+y)=0
x1=4y x2=-y(拾去)
log2x-log2y=log2(x/y)=log2(x/4x)=2