log10(8)-2log10(√2)+log10(25)
=log10(8)-log10(√2)²+log10(25)
=log10[8÷(√2)²×25]
=log10(100)
=log10(10²)
==2log10(10)
=2
log10(8)-2log10(√2)+log10(25)=?
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