分解因式:ax^2+2axy+ay^2
问题描述:
分解因式:ax^2+2axy+ay^2
答
ax" + 2axy + ay"
= a(x" + 2xy + y")
= a(x" + xy + xy + y")
= a[ x(x + y) + (x + y)y ]
= a(x + y)"