来自刘江华的问题
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)=______.
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2020-06-20 07:50
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