(x方+y方-3)(2X方+2y方-4)=24求x方+y方的值
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(x方+y方-3)(2X方+2y方-4)=24求x方+y方的值(x方+y方-3)(2X方+2y方-4)=24求x方+y方的值(x方+y方-3)(2X方+2y方-4)=24求x方+y方的值(x²
(x方+y方-3)(2X方+2y方-4)=24求x方+y方的值
(x方+y方-3)(2X方+2y方-4)=24求x方+y方的值
(x方+y方-3)(2X方+2y方-4)=24求x方+y方的值
(x²+y²-3)(2x²+2y²-4)=24
2(x²+y²-3)(x²+y²-2)=24
(x²+y²-3)(x²+y²-2)=12
(x²+y²)²-5(x²+y²)+6=12
(x²+y²)²-5(x²+y²)-6=0
(x²+y²+1)(x²+y²-6)=0
x²+y²+1=0
或:x²+y²-6=0
所以:x²+y²=-1 (舍去)
x²+y²=6
愿对你有所帮助1
(x方+y方-3)(2X方+2y方-4)=24
(x方+y方-3)(X方+y方-2)=12
即
(x²+y²)²-5(x²+y²)+6=12
(x²+y²)²-5(x²+y²)-6=0
(x²+y²+1)(x²+y²-6...
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(x方+y方-3)(2X方+2y方-4)=24
(x方+y方-3)(X方+y方-2)=12
即
(x²+y²)²-5(x²+y²)+6=12
(x²+y²)²-5(x²+y²)-6=0
(x²+y²+1)(x²+y²-6)=0
所以
x²+y²=-1舍去 或x²+y²=6
即
x²+y²=6
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