Expand the brackets
1.

2.

3.

Solution:

Given that,

We have to expand the brackets

Use distributive property,

a(b + c) = ab + bc

Multiply the number in front of parenthesis with each term inside the parenthesis and then add them together

1)

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2)

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3)

Thus the given expressions are expanded using distributive property

answer: i believe its b. if you sound out the sentences that sounds wrong.