4X²-3X=52
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4X²-3X=52
4X²-3X=52
4X²-3X=52
4X²-3X=52
4X²-3X-52=0
(4x+13)(x-4)=0
x=4
或
x=-13/4
4X²-3X=52
4x²-3x=52 5x²=4-2x
xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1
4m²(2x-3y)²-m²(3x-2y)²=?
3x²-y²=8x²+xy+y²=4
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(X-3)²+(Y+4)²=1 求X²+Y²的最大值
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(5/x²-3x-4)+(4/x²-5x-6)-(8/x²-10x+24)=?
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1.(3x²+10x²+13x-27)/(x²+2x-3)2.(2x²+x³-2)/(x²-1)3.已知A=(3x)²-21x³-2x²+11x-2 B=3x³-5x²-4x+1求a²/b²
已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² 已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² + xY- 2Y² =求x² - 4x Y+ Y² =
数学题4x²-3x=52
5(x²-x)=3(x²+x)
解方程:①6x²-7x+1=0 4x²-3x=52
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(x²-4分之x²+x+1)²÷(x三次方-3x²+2x÷x三次方)²×(x÷x+2)² ,
8x³(x-3)-12x²(x-3)=x²+2x分之x²+3x-x²+4x+4分之x²-4=