Giải phương trình sau:
1) (5x+1)2=(3x-2)2
2) 3x(25x+15)-35(5x+3)=0
3) (x-2)3=(2x+1)3
4) (x-1)(x2+5x-2)-x3+1=0
5) x2+(x+2)(11x-7)=4
a) (x + 2)(3 – 4x) = x2 + 4x + 4
b) x(2x - 7) - 4x + 14 = 0
c) 3x - 15 = 2x(x - 5)
d) (2x + 1)(3x - 2) = (5x - 8)(2x + 1)
a) (5x-15)(4+6x)=0
b) (2x-1)(5x-6)(1/2x-3/4)=0
c) (3-4x)(2x-3/4-x-4/3)=0
d) (2/3x-1/6)[5(x-1)-3/2-(2-3)(x-1)/3]=0
Bài 1: Giải các phương trình tích sau:
2. a) (3x + 2)(x2 –1) = (9x2 – 4)(x + 1) b)x(x + 3)(x – 3) – (x + 2)(x2 – 2x + 4) = 0
c) 2x(x – 3) + 5(x – 3) = 0 d) (3x – 1)(x2 + 2) = (3x – 1)(7x – 10)
e) (x + 2)(3 – 4x) = x2 + 4x + 4 f) x(2x – 7) – 4x + 14 = 0
g) 3x – 15 = 2x(x – 5) h) (2x + 1)(3x – 2) = (5x – 8)(2x + 1)
i) 0,5x(x – 3) = (x – 3)(1,5x – 1) j) (2x2 + 1)(4x – 3) = (x – 12)(2x2 + 1)
k) x(2x – 9) = 3x(x – 5) l) (x – 1)(5x + 3) = (3x – 8)(x – 1)
Giải phương trình:
a, (x+2)(x-3)=0
b, (x-5)(7-x)=0
c, (2x+3)(-x+7)=0
d, (-10x+5)(2x-8)=0
e, (x-1)(x+5)(-3x+8)=0
f, (x-1)(3x+1)=0
g, (x-1)(x+2)(x-3)=0
h, (5x+3)(x2+4)(x-1)=0
Giải các phương trình :
a) \(x\left(2x-9\right)=3x\left(x-5\right)\)
b) \(0,5x\left(x-3\right)=\left(x-3\right)\left(1,5x-1\right)\)
c) \(3x-15=2x\left(x-5\right)\)
d) \(\dfrac{3}{7}x-1=\dfrac{1}{7}x\left(3x-7\right)\)
1, \(\dfrac{\left(2x-3\right)\cdot\left(2x+3\right)}{8}=\dfrac{\left(x-4\right)^2}{6}+\dfrac{\left(x-2\right)^2}{3}\)
2, \(x+2-\dfrac{2x-\dfrac{2x-5}{6}}{15}=\dfrac{7x-\dfrac{x-3}{2}}{5}\)
3, \(1-\dfrac{x-\dfrac{1+x}{3}}{3}=\dfrac{x}{2}-\dfrac{2x-\dfrac{10-7}{3}}{2}\)
4, \(\dfrac{x+1}{99}+\dfrac{x+3}{97}+\dfrac{x+5}{95}=\dfrac{x+7}{93}+\dfrac{9+x}{91}+\dfrac{x+11}{89}\)
Bài 1 : Giải các phương trình sau:1) 5-(x-6)=4(3-2x) 2) (x-3)(x+4)-2(3x-2)=(x-4)2 3)3-x(1-3x)=5(1-2x) 4)9x-1=(3x+1)(4x+1) 5)2x(x-1)=x2-1 6)x2-5x2+6x=0 7)x2+4x-5=0 8)x3+9x2-4x-36=0
giải pt
1.(x^2-x+1)(X^2-x+2)=2
2.X(x+2)(x+3)(x+5)=280
3.(x+3)(x+4)(X+5)=x
4.\(\dfrac{1}{x\left(x+2\right)}+\dfrac{1}{\left(x+2\right)\left(x+4\right)}+\dfrac{1}{\left(x+4\right)\left(x+6\right)}=\dfrac{1}{9}\) 5. 12/x^2-12/x^2+2=1 6.(x^2-6x)^2+14(x-3)^2=81 7.(x^2+5x)^2-2(x^2+5x)-24=0
8. x^2+2x+3=(x^2+x+1)(X^4+x^2+4)
