Pt<=> 3-50x+4x^2=4x^2+x-40<=>51x=43<=>x=43/51
Pt<=> 3-50x+4x^2=4x^2+x-40<=>51x=43<=>x=43/51
Giải các phương trình sau:
a. \(\frac{4}{2x+3}-\frac{7}{3x-5}=0\)
b. \(\frac{4}{2x-3}+\frac{4x}{4x^2-9}=\frac{1}{2x+3}\)
c. \(\frac{2}{2x+1}+\frac{x}{4x^2-1}=\frac{7}{2x-1}\)
d. \(\frac{x^2+5}{25-x^2}=\frac{3}{x+5}+\frac{x}{x-5}\)
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)
Giải phương trình:
1. (x+2)(x-3)(x2+2x-24) =16x2
2. (4x+7)(4x+5)(x+1)(2x+1) =9
3. (4x-5)2(2x-3)(x-1)=1,5
Giải các pt sau:
a. (4x - 1)(x + 5)= x2 - 25
b. 2x3 - 6x2 = x2 - 3x
c. x(x + 3)3 - \(\frac{x}{4}\)(x + 3) = 0
d. (x - 1)2 = (2x + 5)2
a)x(x+3)(x-3) - (x+2)(x^2 -2x +4)=0
b)(x+2)(3-4x)=x^2+4x+4
c)x(2x-7)-4x+14=0
d)3x-15=2x(x-5)
giải phương trình giúp mình với ạ
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)
a) (x-2)x=2x(x+5); b) (2x-5)(x+11)=(5-2x)(2x+1); c)x^2+6x+9=4x^2; d)(x+2)(5-4x)=x^2+4x+4
giải phương trình tícha, 3x-1=0 b, 5x-2=x+4c, 2.(4-2x)-1 =x-3d, 2x-1/3 - x+2/6=3x e, (2x-1).(x.x-6)=0f, (x+2) .(5-4x)=x.x+4x+4
giải phương trình
1,\(\frac{2x+5}{6}-\frac{\left(2x+5\right)\left(x-10\right)}{3}=0\)
2,(4x-1)(x-5)=\(x^2\)-25
3,\(x^3-6x^2=x^2-3x\)
4,x\(\left(x+3\right)^3-\frac{x}{4}\left(x+3\right)\)=0