已知x(½)+x(-½)=3,计算[x(³/²)+x(-³/&
已知x(½)+x(-½)=3,计算[x(³/²)+x(-³/&
(2-½x)²+(2-½x)² = x²
1.函数y=-x³+3x的单调增区间为?2.函数y=½x²-lnx的单调减区间为?
有这样一道计算题:“计算(2x³-3x²y-2xy²)-(x³-2xy²
化简再求值 4x³(-y³)²-3x×(-x)²(-y²)³
说明理由(5x³-7x³y+3x³y)+2x³-(-7x³y+3x&s
若2x³+x²+kx-2能被2x+½整除,求k的值
1、(3x²-2x²+5x-2)-( )=4x³-x²+5
数学整式除法计算:(1)(7x²y³-8x²y³z)÷8x²y&sup
已知x,y满足x²+y²-4x-6y+13=0,求(-y/x³)³÷(-1/xy
解方程:6x+7(2x+3)(2x-3)-28(x-½)(x+½)=4
1已知X-Y=XY=3求(X+Y)²及X³-Y³的值