问题
解答题
分解因式:(x-1)+b2(1-x)
答案
(x-1)+b2(1-x),
=(x-1)+b2(-x+1),
=(x-1)-b2(x-1),
=(x-1)(1-b2),
=(x-1)(1+b)(1-b).
分解因式:(x-1)+b2(1-x)
(x-1)+b2(1-x),
=(x-1)+b2(-x+1),
=(x-1)-b2(x-1),
=(x-1)(1-b2),
=(x-1)(1+b)(1-b).