Respuesta :

socialintrovert

Answer:

-45

Step-by-step explanation: Plug the numbers of a and b into the equation.

matejahgeorge13

Answer:

-45

Step-by-step explanation:

ok so basically since a is 3 a2 will be 9 then you put back the plus sign then 3×a×b will be -18 then 6square will be 36.

=9+(-18)-36

= -9-36

=-45

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