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Kobotan [32]
3 years ago
14

Emily simplified this expression. Expression: (5−2)2+23×4 Step 1: (3)2+23×4 Step 2: 9+23×4 Step 3: 9+9×4 Step 4: 9+36 Step 5: 45

Emily made a mistake. Which step shows her first mistake? Step 1 Step 2 Step 3 Step 4​
Mathematics
1 answer:
Shtirlitz [24]3 years ago
3 0

Answer:

Step 2 shows Emily's first mistake.

Step-by-step explanation:

3(2) = 6

But instead of this Emily wrote 3(2) = 9.

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Answer:

  • commutative property
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Step-by-step explanation:

The expression

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  4.7x +15.3x +10.4 -8.4x +15.6

Next, we use the distributive property to factor x from the first two terms.

  (4.7 +15.3)x +10.4 -8.4x +15.6

Now we perform addition.

  20x +10.4 -8.4x +15.6 . . . . . . . . equivalent expression

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Aleonysh [2.5K]

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Step-by-step explanation:

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Answer:

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