Question

Use your order of operations... Evaluate: 3(-2)^2 - 7

Answer 1

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Answer:

3(-2)² - 7 = 5

Step-by-step explanation:

$3(-2)^2 - 7 =$      

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NOTE: in this expression we have 3 operations : subtraction , multiplication and power.

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RULE: the rule about the order of operations says :

power comes first then multiplication then subtraction.

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»Calculate (power):

$= 3(4) - 7$

»Calculate (multiplication):

$=12-7$

»Calculate (subtraction):

$=5$

:)

Answer 2

Answer:

5

Step-by-step explanation:

$3 {( - 2)}^{2} - 7 \\ = 3 \times 4 - 7 \\ = 12 - 7 \\ = 5$