GIAI CÁC PHƯƠNG TRINH SAU
A) \(X^4+X^3+2X^2+X+1=0\)
B) \(\frac{X+106}{3}+\frac{X+116}{4}+\frac{X+130}{5}+\frac{X+148}{6}=20\)
Giải pt
a)1/x-1-3x²/x³-1=2x/x²+x+1
b) 4x+5/x-1+2x-1/x+1=6
c) x+2/x-3+x-2/x+3=2(x²+6) /x²-9
d) 1/x-2+3=3x-2/x+2
e) 148-x/25+169-x/23+186-x/21+199-x/19=10
f) x+16/49+x+18/47=x+20/45-1
g) (x+2) (x+4) (x+6) (x+8) =-16
h) x³+3x²+3x+2=0
i) 4x/x²-5x+6+3x/x²-7x+6=0
giải các phương trình sau
a) x+1/1 + 2x+3/3 + 3x+5/5+...+20x+39/39 = 22 + 4/3 +6/5 +....+ 40/39
b) x^4+x^3-4x^2+5x-3=0
c) x(x-1)(x-4)(x-5)=84
d) 148-x/25 +169-x/23 + 186-x/21 + 199-x/19 = 10
4. x^2 − 5x + 6
5. x^2+7x+10
6. x + 7√x + 10
7. 3x^4 + 7x^2 + 4
8. x^2-x-2
9. x^6 − x^3 − 2
\(\frac{x-144}{10}+\frac{x-130}{12}+\frac{x-112}{14}+\frac{x-106}{16}+\frac{x-96}{17}=15\)
Tìm x
a,4x-10=0 b, 7-3x=9-x c, 2x-(3-5x) = 4(x+3)
d, 5-(6-x)=4(3-2x) e, 4(x+3)=-7x+17 f, 5(x-3) - 4=2(x-1)+7
g, 5(x-3)-4=2(x-1)+7 h,4(3x-2)-3(x-4)=7x+20
phân tích đa thức thành nhân tử
1.(x+2)(x+3)(x+4)(x+5)-24
2.(x-1)(x-3)(x-5)(x-7)-20
3.x(x-1)(x-1)(x+2)-3
4.(x-7)(x-5)(x-4)(x-2)-72
5.(x^2+6x+8)(x^2-8x+15)-24
6.(x^2-6x+5)(x^2-10x+21)-20
7.(x^2+5x+6)(x^2-15x+56)-144
#Mn làm giúp mik vs#
#thank kiu#
1/ \(\dfrac{x+4}{4}+\dfrac{3x-7}{5}=\dfrac{7x+2}{20}\)
2/ \(\dfrac{x}{6}+\dfrac{1-3x}{9}=\dfrac{-x+1}{12}\)
3/ \(\dfrac{x-3}{3}-\dfrac{x+2}{12}=\dfrac{2x-1}{4}\)
4/ \(\dfrac{x-2}{4}-\dfrac{2x+3}{3}=\dfrac{x+6}{12}\)
5/ \(\dfrac{2x-1}{12}-\dfrac{3-x}{18}=\dfrac{-1}{36}\)
bài 5.phân tích đa thức sau thành nhân tử
17,\(x^3-2x^2+x\)
18,\(3\left(x+4\right)-x^2-4x\)
19,\(x^2+5x-6\)
20,\(x^2+x-20\)
