计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/23 13:00:46
![计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是](/uploads/image/z/3764440-64-0.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%881%EF%BC%89%28%E2%88%9Axy%2B2%E2%88%9Ay%2Fx%2B%E2%88%9Ax%2Fy%2B%E2%88%9A1%2Fxy%29%E2%88%9Axy+%EF%BC%882%EF%BC%89%E8%8B%A52x%5E2%2B3%E4%B8%8E2x%5E2-4%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E5%88%99x%3D%EF%BC%883%EF%BC%89%E8%8B%A5kx%5E2%2Bx%3D3x%5E2%2B1%E6%98%AF%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B%2Ck%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%98%AF)
计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是
计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=
(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是
计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是
(1).2X+3Y+1
(2).±0.5
(3).k≠3
计算:{x√x+x√y / xy-y²}-{x+√xy+y / x√x-y√y}
计算 2√(x²y)/3√(xy)
计算:1)√(xy/2)-1/x√8x³y+1/y√18xy³(x>0,y>0) 2)解不等式x+3/√3 -x-2/√2>√3+√2+1
计算:3xy[2xy-x(y-2)+x]
计算3xy[2xy-x(y-2)+x-1]
计算:2√8x^3y÷√18xy^3 (x>0 y>0)
计算(3x^3y-x^2y+1/2xy)÷(-1/2xy)
xy(2x+y)^2计算
(x^2+xy/x-y)/(xy/x-y)计算
(√xy -xy分之x+√xy)除以√xy -y分之x-y(x>0,y.0)
计算(3x^2y-xy^2+1/2xy)/(-1/2xy)
计算(-3分之1xy²)²×[xy(2x-y)+xy²]=
计算:2√xy÷(-3/2√x²y)·3√x=
计算9/4√48÷(3/8√16/5)=?;5x√xy ÷2√y ²/x×1/x√xy; 化简√-45x×√-10y÷1/10√x/y
若xy满足x²+2x+y-2√y-1=-1,求xy,
计算:3xy(x²y-xy²+xy)-xy²(2x-xy+2x)
计算(-xy)(x+2x²y)
计算:(1)8x^2y^2*(-3x/4y^5) (2)(x+y)^2/xy-y^2*(y-x)^2/xy+y^2