分解因式:x^2+12x+36 -2xy-x^2-y^2 a^2+2a+1 4x^2-4x+1 ax^2+2a^2x+a^3 -3x^2+6xy-3y^2(要有过程)速度~
问题描述:
分解因式:x^2+12x+36 -2xy-x^2-y^2 a^2+2a+1 4x^2-4x+1 ax^2+2a^2x+a^3 -3x^2+6xy-3y^2(要有过程)速度~
(1)x^2+12x+36 (2)-2xy-x^2-y^2 (3)a^2+2a+1 (4)4x^2-4x+1 (5)ax^2+2a^2x+a^3 (6)-3x^2+6xy-3y^2
答
x²+12x+36=x²+6²+2×6x=(x+6)²-2xy-x²-y²=-(x²+y²+2xy)=-(x+y)²a²+2a+1=(a+1)²4x²-4x+1=(2x)²+1-4x=(2x-1)²ax^2+2a²x+a³=a(x...