Question

enter the missing values in the area model to find 7(3m + 7)
answer attempt 1 out of 2
according to the model above, 7(3m + 7) =

Explanation:

Step1: Analyze the first - term in the area model

We know that $7\times3m = 21m$, so the missing value above the $21m$ rectangle is $3m$.

Step2: Calculate the second - term in the area model

We need to find the value of $7\times7$. Since $7\times7=49$, the missing value in the second rectangle is $49$.

Step3: Find the expanded form

$7(3m + 7)=21m+49$ according to the distributive property of multiplication over addition.

Answer:

The missing value above $21m$ is $3m$, the missing value in the second rectangle is $49$, and $7(3m + 7)=21m + 49$