問一道數學題:已知X²+2X+Y²-6Y+10=0,求X的Y次方
題目:
問一道數學題:已知X²+2X+Y²-6Y+10=0,求X的Y次方
解答:
X²+2X+Y²-6Y+10=(X²+2X+1)+(Y²-6Y+9)=(X+1)²+(Y-3)²=0
則X+1=0且Y-3=0 即是X=-1 ,Y=3
X的Y次方= -1
題目:
問一道數學題:已知X²+2X+Y²-6Y+10=0,求X的Y次方
解答:
X²+2X+Y²-6Y+10=(X²+2X+1)+(Y²-6Y+9)=(X+1)²+(Y-3)²=0
則X+1=0且Y-3=0 即是X=-1 ,Y=3
X的Y次方= -1
添加新評論