\(\dfrac{10x^3}{11y^2}.\dfrac{121y^5}{25x}=\dfrac{1210x^3y^5}{275xy^2}=\dfrac{22x^2y^3}{5}\)
\(\dfrac{10x^3}{11y^2}.\dfrac{121y^5}{25x}=\dfrac{1210x^3y^5}{275xy^2}=\dfrac{22x^2y^3}{5}\)
Nhân phân thức
a) \(\frac{30x^3}{11y^2}.\frac{121y^5}{25x}\)
b) \(\frac{x+3}{x^2-4}.\frac{8-12x+6x^2-x^3}{9x+27}\)
GIẢI CÁC PHƯƠNG TRÌNH
A) \(16X^2+\dfrac{X^2}{X-1}=\dfrac{25X^2}{X+1}+\dfrac{X^2+12X-4}{X^2-1}\)
B) \(12X^4-10X^3-75X^2+10X+1=0\)
bài 11.rút gọn biểu thức:
\(a,\dfrac{9x^2}{11y^2}:\dfrac{3x}{2y}:\dfrac{6x}{11y}\) \(b,\dfrac{3x+15y}{x^3-y^3}:\dfrac{x+5y}{x-y}\)
\(c,\dfrac{x^2-1}{x^2-4x+4}:\dfrac{x+1}{2-x}\) \(d,\dfrac{5x+10}{x+2}:\dfrac{5y}{x}\)
\(e,\dfrac{2x}{3x-3y}:\dfrac{x^2}{x-y}\) \(f,\dfrac{5x-3}{4x^2y}-\dfrac{x-3}{4x^2y}\)
\(g,\dfrac{3x+10}{x+3}-\dfrac{x+4}{x+3}\) \(h,\dfrac{4}{x-1}+\dfrac{2}{1-x}+\dfrac{x}{x-1}\)
\(i,\dfrac{2x^2-x}{x-1}+\dfrac{x+1}{1-x}+\dfrac{2-x^2}{x-1}\) \(j,\dfrac{x-2}{x-6}-\dfrac{x-18}{6-x}+\dfrac{x+2}{x-6}\)
\(k,\dfrac{x}{x^2-4}+\dfrac{2}{2-x}+\dfrac{1}{x+2}\) \(m,\dfrac{3}{2x+6}-\dfrac{x-6}{2x^2+6x}\)
\(n,\dfrac{3}{x+3}-\dfrac{x-6}{x^2+3x}\) \(p,\dfrac{x+3}{x}-\dfrac{x}{x-3}+\dfrac{9}{x^2-3x}\)
Bài 1: tìm x
1, 2x(3x-1)+1-3x=0
2, x\(^2\)(2x-3)+12-8x=0
3, 25(x-1)\(^2\)-4=0
4, 25x\(^2\)-10x+1=0
5, -4x\(^2\)+\(\dfrac{1}{9}\)=0
6, (x-1)\(^3\)=8
7, (2x-1)\(^3\)+27=0
8, 125+\(\dfrac{1}{8}\)(x-1)\(^3\)=0
thực hiện phép tính
\(\dfrac{1}{3x-2}-\dfrac{1}{3x+2}-\dfrac{3x-6}{9x^2-4}\)
\(\dfrac{x+25}{2x^2-50}-\dfrac{x+5}{x^2-5x}-\dfrac{5-x}{2x^2+10x}\)
\(\dfrac{1-2x}{2x}-\dfrac{4x}{2x-1}-\dfrac{3}{2x-4x^2}\)
Tìm giá trị của x để \(M=\dfrac{x^3-25x}{x^2+10x+25}\) có giá trị bằng 0.
Biết x thỏa mãn \(\dfrac{x}{x^2+x+1}=\dfrac{1}{4}\). Tính \(\dfrac{x^5-3x^3-10x+12}{x^4+7x^2+15}\)
làm tính nhân phân thức a] 30x3nhan 121y5
11y2nhan 25x
câu 1: (x-2)(x2+2x+4)+25x=x(x+5)(x-5)+8
câu 2: \(\dfrac{x+5}{4}\)+\(\dfrac{3+2x}{3}\)=\(\dfrac{6x-1}{3}\)-\(\dfrac{1-2x}{12}\)
câu 3:\(\dfrac{x-4}{3}\)-\(\dfrac{3x-1}{12}\)=\(\dfrac{3x+1}{4}\)+\(\dfrac{9x-2}{8}\)
Giúp mình với ai làm mà có lời giải rõ á là mình tym nha làm ơn