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Question
Verify the following: (−13) × [(−6) + (−19)] = (−13) × (−6) + (−13) × (−19)
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Solution
(–13) × [(–6) + (–19)] = (–13) × (–6) + (–13) × (–19)
L.H.S.
= (–13) × [(–6) + (–19)]
= (–13) × [–6 – 19]
= (–13) × (–25)
= 325
R.H.S.
= (–13) × (–6) + (–13) × (–19)
= 78 + 247
= 325
∴ L.H.S = R.H.S
Hence, verified.
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