(X+Y-3)方乘(X-Y+5)方=0那么得多少X方-Y方得多少

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(X+Y-3)方乘(X-Y+5)方=0那么得多少X方-Y方得多少
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(X+Y-3)方乘(X-Y+5)方=0那么得多少X方-Y方得多少
(X+Y-3)方乘(X-Y+5)方=0那么得多少
X方-Y方得多少

(X+Y-3)方乘(X-Y+5)方=0那么得多少X方-Y方得多少
(X+Y-3)方乘(X-Y+5)方=0
(X+Y-3)方=0
(X-Y+5)方=0
X+Y=3
X-Y=-5
2x=-2
x=-1
y=3-x=3-(-1)=4