Find the product, using suitable properties: a) (-67) × (-99) + (-67) × (−1) b) 29 × (80 − 3)

asked Oct 17, 2023 47.3k views

1 vote

Find the product, using suitable properties:

a) (-67) × (-99) + (-67) × (−1)

b) 29 × (80 − 3)

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4 votes

Answer: a) 6700 b) 2233

Explanation:

$(-67)*(-99)+(-67)*(-1)=\\(-67)*((-99)+(-1))=\\(-67)*(-100)=\\6700$

$29*(80-3)=\\(30-1)*(80-3)=\\30*80+(-1)*80+(-3)*30+(-1)*(-3)=\\2400-80-90+3=\\2403-170=\\2233$

Jling answered Oct 23, 2023

by Jling

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