Question

化简,要过程x平方+4x+4分之3x+6除以x+2分之x-2-x-2分之1

Answer 1

原式=3(x+2)/(x+2)²乘(x+2)/(x-2)-1/(x-2)

=3/(x+2)乘(x+2)/(x-2)-1/(x-2)

=3/(x-2)-1/(x-2)

=2/(x-2)