Question

18 x [7 +(-3)] = [18 x 7] + [18 (-3)]
(-21) ~[(-4)+(-6)] = [(-21) (-4)] + [(-21) (-6)​

Answer 1

Answer:

Explanation:

a.    18 × [7-3] = 126 + [-54]        (+×- = -)

      18 × 4 = 126-54

      72 = 72

   therefore lhs = rhs

b.     21×[-10] = [84]+[126]             ( -×- = +)

      -210 =/= 210

   therefore lhs =/= (is not equal to) rhs

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