若2^10=a^2=4^b(a>0),求(1/4a+1/5b)(1/4a-1/5b)-(1/4a+1/5b)^2的值、

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若2^10=a^2=4^b(a>0),求(1/4a+1/5b)(1/4a-1/5b)-(1/4a+1/5b)^2的值、若2^10=a^2=4^b(a>0),求(1/4a+1/5b)(1/4a-1/5b

若2^10=a^2=4^b(a>0),求(1/4a+1/5b)(1/4a-1/5b)-(1/4a+1/5b)^2的值、
若2^10=a^2=4^b(a>0),求(1/4a+1/5b)(1/4a-1/5b)-(1/4a+1/5b)^2的值、

若2^10=a^2=4^b(a>0),求(1/4a+1/5b)(1/4a-1/5b)-(1/4a+1/5b)^2的值、
若2^10=a^2=4^b(a>0),则a=32,b=5,所以(1/4a+1/5b)(1/4a-1/5b)-(1/4a+1/5b)^2=1/16a²-1/25b²-1/16a²-2(1/4a+1/5b)-1/25b²=-2(1/4a+1/5b)-2×(1/25b²)=-2×(32/4+5/5)-2×(25/25)=-2×(8+1)-2=-20

2^10=32^2=4^5
a=32,b=5
原式=1/16a²-1/25b²-1/16a²-1/10ab-1/25b²
=-1/10ab-2/25b²
=-16-2
=-18