first you do multiply both the a because a is in square then a x a so (-3 x-3) =6 answer is 6
then next is c
3a sq OK
3a sq = (3x-3) -3 x-3
answer is 81
Given, a=-3
a) 2a= 2 × -3 = -6
b) a^2= (-3)^2= 9
c) 3a^2= 3 × (-3)^2 = 3 × 9 = 27
Hope it helps uh.
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