Math, asked by aryangawand101, 1 year ago

Verify the following:
(a) 18 × [7 + (–3)] = [18 × 7] + [18 × (–3)]
(b) (–21) × [(– 4) + (– 6)] = [(–21) × (– 4)] + [(–21) × (– 6)]

Answers

Answered by blossomag
0

Answer:

18 × [7 + (–3)] = [18 × 7] + [18 × (–3)]

(b) (–21) × [(– 4) + (– 6)] = [(–21) × (– 4)] + [(–21) × (– 6)]

Answered by mzafar149
8

Step-by-step explanation:

a) 18 x [7+(-3)]        =       [18 x 7 ] + [18 x (-3)]

    18 x [7-3]            =               126 + [-54]

    18×4                   =                126 -54

      72                     =                     72    

Hence verified 

b) (–21) × [(– 4) + (– 6)]      =         [(–21) × (– 4)] + [(–21) × (– 6)]

       -21 x [- 4 -6]                =                [-21 x -4]  + [-21 x -6]

     (-21) x (-10)                   =                          84  +  126

            210                         =                              210 

Hence verified

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