Question

18x[7+(-3)] = [18x7]+[18~(-3)]​

Answer 1

Answer:

$18 \times 4 = 18 \times 7 - 18 \\ 72 = 126 - 18 \\ = 36$

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Answer 2

Step-by-step explanation:

consider LHS =RHS

i.e 18*[7-3=4] =[18*7=126]+[18*(-3)=-54]

72=126-57

72=72

hence it is proved LHS=RHS