x\(^2\)-x-(3x-3)=0
⇔x(x-1)-3(x-1)=0
⇔(x-1)(x-3)=0
⇔x-1=0 hoặc x-3=0 hay x=1 hoặc x=3
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Bài 2: Nhân đa thức với đa thức
Các câu hỏi tương tự
a\(8\left(x+\dfrac{1}{x}\right)^{2^{ }}+4\left(x^{2^{ }}+\dfrac{1}{x^2}\right)-4\left(x^2+\dfrac{1}{x^2}\right)\left(x+\dfrac{1}{x}\right)=\left(x+4\right)^2\)giải các phương trình\(\dfrac{x+4}{2x^2-5x+2}+\dfrac{x+1}{2x^2-7x+3}=\dfrac{2x+5}{2x^2-7x+3}\)
Bài 1:a) x (x^2 + 2) + 2x(1-dfrac{1}{2}x^2)4 b) (2x)^2 (x – 1) + x(x^2 + 4x) 40c) 3x(x – 2) – 3(x^2 – 3) 8d) 2x^2(4x^3 + 2x) + (x^2 – 2)(- 2x)^3 20Bài 2: P 3x(dfrac{2}{3}x^2 − 3x^4) + (3x)^2 (x^3 – 1) + (- 2x + 9)x^2 - 12
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Bài 1:
a) x (\(x^2\) + 2) + 2x\((1-\dfrac{1}{2}x^2)=4\)
b) (2x)\(^2\) (x – 1) + x(\(x^2\) + 4x) = 40
c) 3x(x – 2) – 3(\(x^2\) – 3) = 8
d) 2\(x^2\)(4\(x^3\) + 2x) + (\(x^2\) – 2)(- 2x)\(^3\) = 20
Bài 2:
P = 3x(\(\dfrac{2}{3}\)\(x^2\) − \(3x^4)\) + (3x)\(^2\) (\(x^3\) – 1) + (- 2x + 9)\(x^2\) - 12
giải các bất phương trình sau:
a) 3x-5 > 2(x-1)+x
b)\(\left(x+2\right)^2-\left(x-2\right)^2>8x-2\)
c)3(4x+1) - 2(5x+2)≥ 8x-2
d)\(2x^2+2x+1-\dfrac{15\left(x+1\right)}{2}\le2x\left(x+1\right)\)
😭😭😭🌚🌚🌚😞😞😞
1. x+2/x-2-1/x=2/x(x-2)
2. 5x +2(x-2)=17
3. x+3x+2/2=1-5x/6
4. x^2 . -16 =3(x-4)
5. x/x-1-x+1/2x+3=1+4x/(x-1)(2x+3)
6. 3x+1=7x-11
7. (x-1)(3x+2)=0
8. 3x-2=-14
9. (4x-2)(3x+5)=0
10. 2x+1/3-7x+5/15=x-2/5
Giải phương trình:
n) \(\left|3-x\right|+x^2-x\left(x+4\right)=0\)
m)\(\left(x-1\right)^2+\left|x+21\right|-x^2-13=0\)
e) \(\left|5x\right|=3x-2\)
g)\(\left|-2,5x\right|=x-12\)
h) \(\left|5x\right|-3x-2=0\)
i)\(\left|-2x\right|+x-5x-3=0\)
Giải tất cả bài toán này dùm em
1) (X+2y)(x^2+4xy-2y)
?
2) (x-2)(x+2)
?
3) (x-2)(x^2-4x+1)
?
4) (x-3)(x^2+3x+9)
?
5) (x+1)(x^2-x+1)
?
6) ( 2x-3)(x^2-9x+5)
?
7) (5x+1)(25x^2-5x+1)
?
8) (3x^3-2)(-4x^2-x+3)
?
9) (x-2)(x^2+2x+4)
?
10) (5x-2y)(x^2-xy+1)
?
Đọc tiếp
Giải tất cả bài toán này dùm em
1) (X+2y)(x^2+4xy-2y)
=?
2) (x-2)(x+2)
=?
3) (x-2)(x^2-4x+1)
=?
4) (x-3)(x^2+3x+9)
=?
5) (x+1)(x^2-x+1)
=?
6) ( 2x-3)(x^2-9x+5)
=?
7) (5x+1)(25x^2-5x+1)
=?
8) (3x^3-2)(-4x^2-x+3)
=?
9) (x-2)(x^2+2x+4)
=?
10) (5x-2y)(x^2-xy+1)
=?
Bài 1: Nhân
a) 4x(3x-1)-2(3x+1)-(x+3)
b) (-2x^2-1xy+2y^2)(-1x^2y)
c) 4x(3x^2-x) -(2x+3)^2(6x^2-3x+1)
d) (x-2)(x+2)(x+4)
Bài 2: Tìm x
a) 4x(x-1)-3(x^2-5)-x^2=(x-3)(x+4)
b) 2(3x-1)(2x+5-6)(2x-1)(x+2)=6
c) 3(2x-1)(3x-1)-(2x-3)(9x-1)-3=-3
1. Tìm x
a.( 8x-3)*(3x+2)-(4x+7)*(x+4)=(4x+1)*(5x-1).
b.2x2+3*(x-1)*(x+1)=5x*(x+1).
c.(8+5x)*(x+2)+4*(x-2)*(x+1)+2(x-2)*(x+2)=6.
d.4*(x-1)*(x+5)-(x+2)*(x+5)=3*(x-1)*(x+2).
Mong các bạn giải nhanh giùm mình :D
1) 5(x-3) (x-7)-(5x+1) (x-2)= -8
2) x(x+1) (x+2)-(x+4) (3x-5)= 84-5x
3) (9x2-5) (x+3)-3x2(3x+9)=(x-5) (x+4)-x(x-11)
4) (x2-4x+16) (x+4)-x(x+1) (x+2)+3x2=0
5) (8x+2) (1-3x)+(6x-1) (4x-10)=-50
6) (x2+2x+4) (2-x)+x(x-3) (x+4)-x2+24=0
7) (\(\dfrac{x}{2}\)+3) (5-6x)+(12x-2) (\(\dfrac{x}{4}\)+3)=0