Question

因式分解1-13X^2+4X^4

RT
还有这道也是因式分解2X(L-2M)-Y(1+3N)+2(3NX+MY)
谢谢

Answer 1

1-13X^2+4X^4
=1-4X^2+4X^4-9x²
=(1-2x²)²-9x²
=(1-2x²-3x)(1-2x²+3x)
=(2x²+3x-1)(2x²-3x-1)

Answer 2

1-13X^2+4X^4
=1-4X^2+4X^4-9X^2
=(2X^2-1)^2-(3X)^2
=(2X^2-3X+1)(2X^2+3X+1)
=(-1 + X) (1 + X) (-1 + 2 X) (1 + 2 X)