Question

Viết các đa thức sau thành tích:

1) 8z^3+27.

2) 9/25x^4-1/4

3) x^32-1

4) 4x^2+4x+1

5) x^2-20x+100

6) y^4-14y^2+49

7) 125x^3-64y^3

 

Answer 1

1) \(=\left(2z+3\right)\left(4z^2-6z+9\right)\)

2) \(=\left(\frac{3x^2}{5}-\frac{1}{2}\right)\left(\frac{3x^2}{5}+\frac{1}{2}\right)\)

3) \(=\left(x-1\right)\left(x+1\right)\left(x^2+1\right)\left(x^4+1\right)\left(x^8+1\right)\left(x^{16}+1\right)\)

4) \(=\left(2x+1\right)^2\)

5) \(=\left(x-10\right)^2\)

6) \(=\left(y^2-7\right)^2\)

7) \(=\left(5x-4y\right)\left(25x^2+20xy+16y^2\right)\)

Answer 2

Cảm ơn bạn nhiều nha 😁😁😁😁