Question

[Nguyễn Nhật Gia Hân]

Phan tich da thuc sau thanh nhan tu ( giup minh nhe :< )

1/ 32x - 2x³ + 4x²y - 2xy²

2/ a³ + 3a² + 4a + 12

3/ 4a² - 4b² - 4a + 1

4/ -x² - x + 2

5/ 7x² - 14xy² + 7y⁴

6/ x² + 4x - y² + 4

7/ x⁵ + x + 1

8/ x⁸ + x + 1

9/ x⁴ + 2017x² + 2016x + 2017

Answer 1

[Nguyễn Lê Phước Thịnh]

2: \(=a^2\left(a+3\right)+4\left(a+3\right)=\left(a+3\right)\left(a^2+4\right)\)

3: \(=\left(2a-1\right)^2-4b^2\)

\(=\left(2a-1-2b\right)\left(2a-1+2b\right)\)

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

5: \(=7\left(x^2-2xy^2+y^4\right)=7\left(x-y^2\right)^2\)

6: \(=\left(x+2\right)^2-y^2=\left(x+2+y\right)\left(x+2-y\right)\)