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Types of Brackets

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Question

Place the last two terms of the following expressions in parentheses preceded by a minus sign: $3 a - 2 b + 4 c - 5$

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Solution

We have to put the last two terms in parentheses preceded by a minus sign
$= 3 a - 2 b + 4 c - 5$
$= 3 a - 2 b - (- 4 c) - 5$
$= 3 a - 2 b - (- 4 c + 5)$
$= 3 a - 2 b - (5 - 4 c)$

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Types of Brackets

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