计算:(1)(a-b)²+b(2a+b) (2)x²/(x-z)+1/(1-x)打错了(2)应该是x²/(x-1)+1/(1-x)
问题描述:
计算:(1)(a-b)²+b(2a+b) (2)x²/(x-z)+1/(1-x)
打错了(2)应该是
x²/(x-1)+1/(1-x)
答
计算:(1)(a-b)²+b(2a+b) (2)x²/(x-z)+1/(1-x)
打错了(2)应该是
x²/(x-1)+1/(1-x)