( 3x - 1 )2 - 16
= ( 3x - 1 )2 - 42
= ( 3x - 1 - 4 )( 3x - 1 + 4 )
= ( 3x - 5 )( 3x + 3 )
= 3( 3x - 5 )( x + 1 )
Các câu hỏi tương tự
\(\left(3x+1\right)^2-4.\left(x-2\right)^2\)=
Giai dung nha, ai giai dung mk tick cho
Cung la bai phan tich da thuc thanh nhan tu dung hang dang thuc(cua lop 8)
phan tich da thuc thanh nhan tu
x^2-x-y^2-y
x^2-2xy+y^2-z^2
bai 32 va 33 sbt
lop 8 bai phan tich da thuc thanh nhan tu bang cach nhom hang tu
phan tich da thuc thanh nhan tu bang pp dung hang dang thuc:
a) 16x^2 - (x^2 + 4)^2
b) 27x^3 - 54x^2 + 36x - 8
c) (x+y)^3 - (x-y)^3
help me
phan tich da thuc thanh nhan tu bang phuong phap dung hang dang thuc
1)tinh nhanh
a)72 -272 =?
b)372 -132=?
c)20022-22=?
giai giup minh nha
Bai 1 Phan tich da thuc thanh nhan tu
x^3 + 3x- 3xy- 3y
Bai 2 Tim x
( 2x - 1) ( 2x + 1) - 4 ( x ^2 +x ) = 16
cac bn lam on giup mink di ma
phan tich thanh nhan tu bang pp dung hang dang thuc 1+8x^6y^3
phan tich da thuc thanh nhan tu
\(9\left(x+1\right)^2-\left(3x-2\right)^2\)
\(\left(2x-10\right).\left(x+10\right).\left(x+\sqrt{3}\right)=0\)
(Bai phan tich da thuc thanh nhan tu)
\(\left(2x+1\right)^2+2\left(2x+1\right)\)
phan tich da thuc thanh nhan tu