因式分解:2X的二次方-8=?

2025-12-13 00:43:23
推荐回答(3个)
回答1:

2x^2-8
=2(x^2-4)
=2(x+2)(x-2)

回答2:

2x^2-8
=2(x^2-4)
=2(x+2)(x-2).

回答3:

=2(X^2-4)
=2(X+2)(X-2)