分解因式:(a+b)눀-9 1⼀4+(a-b)+(a-b)눀

2025-02-26 22:29:43
推荐回答(4个)
回答1:

(a+b)²-9
=(a+b+3)(a+b-3)

1/4+(a-b)+(a-b)²
=[1/2+(a-b)]²
=(a-b+1/2)²

回答2:

(a+b)²-9
=(a+b+3)(a+b-3)

1/4+(a-b)+(a-b)²
=(1/4)[4(a-b)²+4(a-b)+1]
=(1/4)(2a-2b+1)²

回答3:

:(a+b)²-9
=(a+b+3)(a+b-3);
1/4+(a-b)+(a-b)²
=(a-b+1/2)²

回答4:

(a+b)²-9=(a+b-3)(a+b+3)

1/4+(a-b)+(a-b)²=(1/2+a-b)²