`x(x+4)-x^2=10`
`<=> x^2 + 4x -x^2=10`
`<=> 4x=10`
`<=> x=10:4`
`<=>x=10/4`
`<=>x= 5/2`
<=> x2 + 4x - x2 = 10
<=> 4x=10
<=> x= 5/2
Tìm x
a.(x-2)(x2+2x+4)-x(x-3)(x+3)=26
b.(x-3)(x2+3x+9)-x(x+4)(x-4)=21
A= -10/x-4
B= x+2/x+5 +( -5x-1)/x2+6x+5 - 1/1+x
a) tìm đkxđ của A và B
b) tìm x thuộc z để P=A.B là số nguyên
Giúp vs
Bài 5; Tìm x
a) x2-4=0
b) 2x(x+5)-3(5+x)=0
c) x3-6x2+11x-6=0
Tìm x
a) (x-1)^10 + (x-2)^10 =1
b) (x+3)^100 + (x+4)^100 = 1/3
Tìm x
a) (x-1)^10 + (x-2)^10 =1
b) (x+3)^100 + (x+4)^100 = 1/3
Tìm x
a) (x-1)^10 + (x-2)^10 =1
b) (x+3)^100 + (x+4)^100 = 1/3
Tìm x
a) (x-1)^10 + (x-2)^10 =1
b) (x+3)^100 + (x+4)^100 = 1/3
Tìm x
a) (x-1)^10 + (x+2)^10 =1
b) (x+3)^100 + (x+4)^100 = 1/3
Bài 3: Tìm x
a) (2x+3)2−4x2=10
b) (x+1)2−(2+x)(x−2)=0
c) (5x−1)(1+5x)=25x2−7x+15
d) (4−x)2−16=0
e) 3x2−12x=0
g) x2−8x−3x+24=0
Tìm x
a, 3/4x*(x2-9)=0
b, x3-16x=0
c, (x-1)(x+2)-x-2=0
d, 3x3-27x=0
e, x2(x+1)+2x(x+1)=0
f, x(2x-3)-2(3-2x)=0
