Question

Phan tich da thuc thanh nhan tu

a, \(4x^4+1\)

Answer 1

4x⁴+1=4x⁴+4x²+1-4x²

=(2x²+1)²-4x²

=(2x²-2x+1)(2x²+2x+1)

Answer 2

= (4x^4+4x^2+1)-4x^2

=(2x^2+1)^2-(2x)^2

= (2x^2-2x+1)(2x^2+2x+1)