ax²-4a,因式分解,
问题描述:
ax²-4a,因式分解,
答
ax²-4a
=a(x^2-4)
=a(x+2)(x-2)
ax²-4a,因式分解,
ax²-4a
=a(x^2-4)
=a(x+2)(x-2)