Question

Tolong Di Bantu ya, Berikan Jawaban dan cara nya

Answer 1

=> x*y = x³-3xy
=> 9*3 = 9³-3.9.3
=> 9*3 = 729 - 81
=> 9*3 = 648

Answer 2

X*y = - 3xy
9*3 = - 3(9)(3)
9*3 = 729 - 81
9*3 = 648