若3a²-a=1,则6a²-2a+3=( )
问题描述:
若3a²-a=1,则6a²-2a+3=( )
答
6a²-2a+3=
=2*(3a²-a)+3
=2*1+3
=5
若3a²-a=1,则6a²-2a+3=( )
6a²-2a+3=
=2*(3a²-a)+3
=2*1+3
=5