18 x [7 +(-3)] = [18 x 7] + [18 X (-3)](-21)× [(-4)+(-6)]=[(-21) × ( – InterviewSolution

1.

18 x [7 +(-3)] = [18 x 7] + [18 X (-3)](-21)× [(-4)+(-6)]=[(-21) × (- 4)] + [(-21) (-6)

Answer»

72=126+(-54)

72=72

84-6=84×-4+(-21)(-6)

78=336+(-21)(-6)

78=315-6

78 is not 309....

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