Question

分解因式：***+24

Answer 1

***+24

=[(x+1)(x+4)][(x+2)(x+3)]+24

=(x^2+5x+4)(x^2+5x+6)+24

=(x^2+5x)^2+10(x^2+5x)+24+24

=(x^2+5x)^2+10(x^2+5x)+48

=(x^2+5x+5)^2+23

实数范围内无法分解