计算Log5 35+2log1/2√2-log5 1/50-log5 14急急急!!!

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计算Log5 35+2log1/2√2-log5 1/50-log5 14
急急急!!!

Log5 35+2log1/2√2-log5 1/50-log5 14
=log5 (5×7)+2log2^(-1) 2(1/2)-log5 (25×2)^(-1)-log5 (2×7)
=(1+log5 7)+2×(-1/2)+(2+log5 2)-(log5 2+log5 7)
=2