Identify parts to calculate: Identify the parts of the expression that need to be calculated first according to the order of operations (PEMDAS/BODMAS). The expression is -2(1+2). According to the order of operations, we need to calculate the value inside the parentheses first.Calculate inside parentheses: Calculate the value inside the parentheses. 1 + 2 = 3Multiply by -2: Multiply the result from Step 2 by -2. -2 * 3 = -6

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$-2(1+2)$

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-2(1+2)

Identify parts to calculate: Identify the parts of the expression that need to be calculated first according to the order of operations (PEMDAS/BODMAS). $\newline$ The expression is $-2(1+2)$ . According to the order of operations, we need to calculate the value inside the parentheses first.
Calculate inside parentheses: Calculate the value inside the parentheses. $\newline$ $1 + 2 = 3$
Multiply by $-2$ : Multiply the result from Step $2$ by $-2$ . $-2 \times 3 = -6$ .