Question

因式分解填空：x² y四次方 - x四次方 y²=?,4x³-36x=?,2 x四次方 -

Answer 1

x^2y^4-x^4y^2

=x^2y^2(y^2-x^2)

=x^2y^2(y+x)(y-x)

4x^3-36x

=4x(x^2-9)

=4x(x+3)(x-3)

2x^4-2

=2(x^4-1)

=2(x^2+1)(x^2-1)

=2(x^2+1)(x+1)(x-1)