Lời giải:
$(x+5)(x-3)=(x-4)(3+x)$
$\Leftrightarrow x^2+2x-15=x^2-x-12$
$\Leftrightarrow 3x=3\Rightarrow x=1$
Lời giải:
$(x+5)(x-3)=(x-4)(3+x)$
$\Leftrightarrow x^2+2x-15=x^2-x-12$
$\Leftrightarrow 3x=3\Rightarrow x=1$
1,Giải PT sau
a, (5x+3)(x2+4)(x-4)=0
b, (4x-1)(x-3)-(x-2)(5x+2)=0
c, (x+3)(x-5)+(x+3)(3x-4)=0
d, (x+6)(3x-1)+x2-36=0
e, 0,75x(x+5)=(x+5)(3-1,25x)
giải pt
(x+3)^4+(x+5)^4=0
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
Bài 1: giải các pt sau:
1,(x-1)^2-(x+1)^2=2(x+3)
2,(2x-1)^2-(2x+1)^2=4(x-3)
3,(2x+3)^2-(2x+3).(2x-4)=-(x-2)^2
4,8x^3-(x+1)^3=3x-3
5,(3x-2).(9x^2+6x+4)-(3x+1).(9x^2-3x+1)=(2x+1).(2x-1)-4x(x-3)
Giải PT
d) (3-x)4+(x-2)4=(5-2x)4
giải pt:
\(\dfrac{3\left(5-x\right)}{4}-2=\dfrac{7x}{3}-5\left(x-7\right)\)
giải pt sau
(3x-1)(2x-3)(2x-3)(x+5)=0
1,Giải PT sau
a,\(\frac{4}{5}x-3=\frac{1}{5}x\left(4x-15\right)\)
b,(x-3)-\(\frac{\left(x-3\right)\left(2x-5\right)}{6}=\frac{\left(x-3\right)\left(3-x\right)}{4}\)
c,\(\frac{\left(3x+1\right)\left(3x-2\right)}{3}+5\left(3x+1\right)=\) \(\frac{2\left(2x+1\right)\left(3x+1\right)}{3}+2x\left(3x+1\right)\)
Giải PT:
(3x)^2-4(x-3)^2=0
x^3+x^2+4=0
(x-1)^2.(x-3)+(1-x)^2.(x+3)=72