(x^2+2)+8x(x^2+2)+15x^2 =? x=?
问题描述:
(x^2+2)+8x(x^2+2)+15x^2 =? x=?
答
(x^2+2)+8x(x^2+2)+15x^2 =(x^2+2+3x)(x^2+2+5x) =(x+1)(x+2)(x^2+5x+2)
(x^2+2)+8x(x^2+2)+15x^2 =? x=?
(x^2+2)+8x(x^2+2)+15x^2 =(x^2+2+3x)(x^2+2+5x) =(x+1)(x+2)(x^2+5x+2)