来自谷远利的问题
已知实数a满足a2+2a-8=0,则1a+1−a+3a2−1×a2−2a+1(a+1)(a+3)=______.
已知实数a满足a2+2a-8=0,则1a+1−a+3a2−1×a2−2a+1(a+1)(a+3)=______.
1回答
2020-01-31 23:59
已知实数a满足a2+2a-8=0,则1a+1−a+3a2−1×a2−2a+1(a+1)(a+3)=______.
已知实数a满足a2+2a-8=0,则1a+1−a+3a2−1×a2−2a+1(a+1)(a+3)=______.
原式=1a+1