
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.


mình biết nội quy rồi nên đưng đăng nội quy
ai chơi bang bang 2 kết bạn với mình
mình có nick có 54k vàng đang góp mua pika
ai kết bạn mình cho

\(2x^3-3x^2+2x-1\)
\(=2x^3-2x^2-x^2+x+x-1\)
\(=\left(x-1\right)\left(2x^2-x+1\right)\)

\(\left(x+3\right)^2-\left(2x+6\right)\left(1-3x\right)+\left(3x+1\right)^2\)
\(=x^2+6x+9-\left(2x-6x^2+6-18x\right)+9x^2+6x+1\)
\(=10x^2+12x+10+6x^2+16x-6=16x^2+28x+4\)
\(=4\left(4x^2+7x+1\right)\)


\(3x^4+11x^3-7x^2-2x+1=\left(3x^4+12x^3-3x^2-3x\right)+\left(-x^3-4x^2+x+1\right)\)
\(=\left(3x-1\right)\left(x^3+4x^2-x-1\right)\)

a) 2x2-2y2-6x-6y = ( 2x2-2y2)- ( 6x+6y)
= 2(x2-y2)- 6(x+y)
2( x+y )- 6( x+y )
..........
b) x^3 +3x^2 - 3x -1= (x^3-1) +(3x^2-3x)
= (x3-1)+ 3x( x-y)
.......
Những dòng mình .... là đến đấy đơn giản rồi, đặt nhân tử chung là đc
=

1) \(x\left(4x+1\right)\)
2) \(3\left(x-3y\right)\)
3) \(\left(2x+1\right)\left(2x+1+2\right)=\left(2x+1\right)\left(2x+3\right)\)

Ta có
2x^4-x^3+2x^2+3x-2
=x^3(2x-1)+(2x^2-x)+(4x-2)
=x^3(2x-1)+x(2x-1)+2(2x-1)
=(x^3+x+2)(2x-1)

\(2x\left(x-1\right)-3x+3\)
\(=2x\left(x-1\right)-\left(3x-3\right)\)
\(=2x\left(x-1\right)-3\left(x-1\right)\)
\(=\left(2x-3\right)\left(x-1\right)\)
r nhen -.-'
\(2x\left(x-1\right)-3x+3\)
\(=2x\left(x-1\right)-\left(3x-3\right)\)
\(=2x\left(x-1\right)-3\left(x-1\right)\)
\(=\left(x-1\right)\left(2x-3\right)\)