答:x*y=36或x*y=32
x^2+y^2+4y-96=0
y^2+4y+4-100+x^2=0
(y+2)^2=10^2-x^2
x^2=10^2-(y+2)^2
x,y为正整数
9≥x≥1
若x,y为正整数,且x^2+y^2+4y-96=0,则xy=_____.
若x,y为正整数,且x^2+y^2+4y-96=0,则xy=_____.
PS:x^2为x的平方,y^2为y的平方,xy为x和y的乘积.
PS:x^2为x的平方,y^2为y的平方,xy为x和y的乘积.
数学人气:724 ℃时间:2019-11-02 16:15:51
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