\(\left(12x+7\right)^2\left(3x+2\right)\left(2x+1\right)=3\Leftrightarrow\)\(\left(144x^2+168x+49\right)\left(6x^2+7x+2\right)=3\)
Đặt \(6x^2+7x+2=a\Rightarrow144x^2+168x+49=24a+1\)
Phương trình tương đương \(a\left(24a+1\right)=3\)\(\Leftrightarrow24a^2+a-3=0\)
tự giải tiếp
Giải pt
\(\left(12x+7\right)^2\left(3x+2\right)\left(2x+1\right)=3\)
Tính và thu gon:
\(\left(2x+1\right)^2-\left(4x-3\right)\left(x+7\right)-22\)
\(69x\left(3x^2-5x\right)-\left(3x+1\right)\left(9x^2-18x-1\right)\)
\(\left(1-2x\right)^3-4x^2\left(3-2x\right)+24x^2\)
\(\left(24x^2y^2z-36x^2y^2z^2-12x^2y^3z\right):12x^2yz\)
Giải Phương Trình:
\(\left(12x+7\right)^2\left(3x+2\right)\left(2x+1\right)=3\)
Rút gọn các phân thức:
a)\(\dfrac{14xy^5\left(2x-3y\right)}{21x^2y\left(2x-3y\right)^2}\) b)\(\dfrac{8xy\left(3x-1\right)^3}{12x^3\left(1-3x\right)}\)
c) \(\dfrac{20x^2-45
}{\left(2x+3\right)^2}\) d) \(\dfrac{5x^2-10xy}{2\left(2y-x\right)^3}\)
giải các pt sau
\(\frac{x+1}{3}+\frac{3\left(2x+1\right)}{4}=\frac{2x+3\left(x+1\right)}{6}+\frac{7+12x}{12}\)
\(\frac{2\left(3x+1\right)+1}{4}-5=\frac{2\left(3x-1\right)}{5}-\frac{3x+2}{10}\)
\(\frac{3\left(x-3\right)}{4}+\frac{4x-10.5}{10}=\frac{3\left(x+1\right)}{5}+6\)
\(\frac{x+1}{58}+\frac{x+2}{57}=\frac{x+3}{56}+\frac{x+4}{55}\)
Giai phuong trinh giup minh voi:
\(\frac{\left(3x+1\right)\left(3x-2\right)}{3}+5\left(3x-1\right)=\frac{2\left(2x+1\right)\left(3x+1\right)}{3}+2x\left(3x+1\right)\)
a) (12x-5)(4x-1)+(3x-7)(1-16x)=81
b) (2x-3)(2x+3)-(4x+1).x=1
c) \(3x^2-\left(x+2\right)\left(3x-1\right)=-7\)
Giai cac bpt sau
a,\(\left(x+1\right)\left(2x-2\right)-3>-5x-\left(2x+1\right)\left(3-x\right)\)
b,\(\left(x-3^{ }\right)^2+4\left(2-x\right)>\left(x+7\right)\)
Giải các pt sau
\(x^2+\frac{2x}{x-1}=8\)
\(\left(4x+1\right)\left(12x-1\right)\left(3x+2\right)\left(x+1\right)\)=4
\(\left(x^2-1\right)\left(x+3\right)\left(x+5\right)=9\)
\(x^4-3x^3+4x^2-6x+4=0\)
