因式分解
(x²-y)²-(2y-2)²
^4表示4次方
9x^4-36y²
(a²-2b)²-(1-2b)²
参考答案:(x²-y)²-(2y-2)²
=(x²-y+2y-2)(x²-y-2y+2)
=(x²+y-2)(x²-3y+2)
9x^4-36y²
=9(x^4-4y²)
=9(x²+2y)(x²-2y)
(a²-2b)²-(1-2b)²
=(a²-2b+1-2b)(a²-2b-1+2b)
=(a²-4b+1)(a²-1)
=(a²-4b+1)(a+1)(a-1)
(x²-y)²-(2y-2)²
^4表示4次方
9x^4-36y²
(a²-2b)²-(1-2b)²
参考答案:(x²-y)²-(2y-2)²
=(x²-y+2y-2)(x²-y-2y+2)
=(x²+y-2)(x²-3y+2)
9x^4-36y²
=9(x^4-4y²)
=9(x²+2y)(x²-2y)
(a²-2b)²-(1-2b)²
=(a²-2b+1-2b)(a²-2b-1+2b)
=(a²-4b+1)(a²-1)
=(a²-4b+1)(a+1)(a-1)