神马作文网(50-2x)(30-2x)x=1056 解出x的值
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(50-2x)(30-2x)x=1056 解出x的值
[ 1/3*(64+9*i*1323059^(1/2))^(1/3)+475/3/(64+9*i*1323059^(1/2))^(1/3)+40/3]
[ -1/6*(64+9*i*1323059^(1/2))^(1/3)-475/6/(64+9*i*1323059^(1/2))^(1/3)+40/3+1/2*i*3^(1/2)*(1/3*(64+9*i*1323059^(1/2))^(1/3)-475/3/(64+9*i*1323059^(1/2))^(1/3))]
[ -1/6*(64+9*i*1323059^(1/2))^(1/3)-475/6/(64+9*i*1323059^(1/2))^(1/3)+40/3-1/2*i*3^(1/2)*(1/3*(64+9*i*1323059^(1/2))^(1/3)-475/3/(64+9*i*1323059^(1/2))^(1/3))]
[ -1/6*(64+9*i*1323059^(1/2))^(1/3)-475/6/(64+9*i*1323059^(1/2))^(1/3)+40/3+1/2*i*3^(1/2)*(1/3*(64+9*i*1323059^(1/2))^(1/3)-475/3/(64+9*i*1323059^(1/2))^(1/3))]
[ -1/6*(64+9*i*1323059^(1/2))^(1/3)-475/6/(64+9*i*1323059^(1/2))^(1/3)+40/3-1/2*i*3^(1/2)*(1/3*(64+9*i*1323059^(1/2))^(1/3)-475/3/(64+9*i*1323059^(1/2))^(1/3))]
(50-2x)(30-2x)x=1056 解出x的值
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