2^3+5^3>(2^2)*5+2*(5^2) 2^4+5^4>(2^3)*5+2*(5^3) 2^5+5^5>(2^3)*(5^2)+(2^2)*(5^3) 推广?2^3+5^3>(2^2)*5+2*(5^2)2^4+5^4>(2^3)*5+2*(5^3) 2^5+5^5>(2^3)*(5^2)+(2^2)*(5^3) 推广?
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2^3+5^3>(2^2)*5+2*(5^2) 2^4+5^4>(2^3)*5+2*(5^3) 2^5+5^5>(2^3)*(5^2)+(2^2)*(5^3) 推广?2^3+5^3>(2^2)*5+2*(5^2)2^4+5^4>(2^3)*5+2*(5^3) 2^5+5^5>(2^3)*(5^2)+(2^2)*(5^3) 推广?
计算:(5+2)+(5+2×2)+(5+2×3)+.+(5+2×90)的过程.
计算:(5+2)+(5+2×2)+(5+2×3)+.+(5+2×90).
5+5^2+5^3+...+5^2013
已知3(5x+2)+5
已知3(5x+2)+5
已知3(5x+2)+5
5/6×(3/4+2/5)
1+5+5+5+5+3+2+2+2+2+2+2+1+2+5
(2x10^-5)^2/(3x10^-2)^-2
3/5^2/5,2/5^3/5,2/5^2/5比较大小
1/3【2(2x+5)-3】+3/2(2x+5)=12
【2-3乘(根号3-2)】-2*根号5
【2-3乘(根号3-2)】-2*根号5
3、2×2、5竖式
2/5*X-3/5*(X-2/5*X)/(1+3/5)=56
5-3除以(-2)
5+2-3等于