Question

its of grade 7 please tell me its important​

Answer 1

Answer:

given

a_b = a×b+b×b-2×a×(-b)

we need to find

(-8)_(-2)   here a=(-8); and b=(-2)

(-8) _ (-2) = (-8)×(-2)+(-2)×(-2) - 2×(-8)×(-(-2))

               = 16 + 4 - (-32)

               = 20 + 32

               = 52