Ffujioo Ffujioo

07-10-2022
Mathematics

Answered

Solve the following problems using special product. SHOW YOUR SOLUTION.

1.) Find the area of a square whose side measures (7+4k) inches.

Answer :

wegnerkolmp2741o wegnerkolmp2741o

07-10-2022

Answer:

49 + 56k + 16 k^2

Step-by-step explanation:

The area of a square is found by

A = s^2 where s is the side length

A = ( 7 + 4k) ^2

We can use ( a+ b) ^2 = a^2 + 2ab + b^2 where a = 7 and b = 4k

A = 7^2 + 2 * 7 * 4k + ( 4k) ^2

= 49 + 56k + 16 k^2

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