5x(2x-3)-4(3-2x)=0
<=> 5x(2x-3)+4(2x-3)=0
<=> (2x-3)(5x+4)=0
<=> \(\left[{}\begin{matrix}2x-3=0\\5x+4=0\end{matrix}\right.\)
<=> \(\left[{}\begin{matrix}x=\frac{3}{2}\\x=\frac{-4}{5}\end{matrix}\right.\)
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
a) (2x +1)(3 – x)(4 - 2x) = 0 b)2x(x – 3) + 5(x – 3) = 0
c) (x2 – 4) – (x – 2)(3 – 2x) = 0 d) x2 – 5x + 6 = 0
e) (2x + 5)2 = (x + 2)2 f) 2x3 + 6x2 = x2 + 3x
giải pt (x - 1)(2x² - 10) = 0
(2x - 7)² - 6(2x - 7)(x - 3) = 0
(5x + 3)(x² + 4) = 0
I) giải các pt tích:
1) 3x - 12= 5x(x - 4)
2) 3x - 15= 2x(x - 5)
3) 3x(2x - 3) + 2(2x - 3)= 0
4) (4x - 6) (3 - 3x)= 0
Giải phương trình sau :
a, \(2x^4+3x^3-x^2+3x+2=0\)
b, \(2x^5+5x^4-13x^3-13x^2+5x+2=0\)
1)(2x-5)^2-(x+2)^2=0
2) (3x^2+10x-8)^2=(5x^2-2x+10)
3) (x^2-2x+1)-4=0
giai cac pt sau:
2x^2-5x+2=0
3x^2-7x-20=0
x^3+x^2+4=0
x^3-5x^2+8x-4=0
giải hộ mk vs
1/2x^4+3x^3-x^2+3x+2=0
2/x^4-5x^3+7x^2-5x-16=0
3/(x+2)^4+(x+4)^4=16
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
