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1.已知(2y-x)/(7x+5y)=2/3,且y不等于0,则x/y=2.如果(2x+1)/[(x-3)(x+4)]=A/(3-x)+B/(x+4),则A=B=3.(3-X)/(2-X)÷(x+2-[5/(x-2)]
题目详情
1.已知(2y-x)/(7x+5y)=2/3,且y不等于0,则x/y=______
2.如果(2x+1)/[(x-3)(x+4)]=A/(3-x)+B/(x+4),则A=______ B=________
3.(3-X)/(2-X) ÷(x+2-[5/(x-2)]
2.如果(2x+1)/[(x-3)(x+4)]=A/(3-x)+B/(x+4),则A=______ B=________
3.(3-X)/(2-X) ÷(x+2-[5/(x-2)]
▼优质解答
答案和解析
-4/17
A=-1 B=1
1/(x+3)
A=-1 B=1
1/(x+3)
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