Perform the indicated operations and simplify: (7a^2-3b^2+10)-(-2a^2+b^2-12)

Question

please show steps

Answer 1

 

 

                               7 a^2    -3b^2    +10                    Now change the signs in the second equation minus sign

 

                              +2a^2   -b^2       +12                Now add  LIKE   TERMS..

                            _____________________

 

                      =      9a^2    -4b^2     +22        -------->     Answer   simplified

 

 

                        Hope this helps !