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valkas [14]
2 years ago
9

Can you pls help i need to submit it soon ..i'll mark you brainlist

Mathematics
2 answers:
garik1379 [7]2 years ago
8 0

Here is the answer with explanation

faust18 [17]2 years ago
6 0

Answer:

9x² + 72x + 144    OR   x² + 8x + 16

Step-by-step explanation:

Data :

Sqaure has  a side  let say p = 3x + 12

As the formula for square area is

    Area = A = p² or length × width

As square  has all equal  side

So   ( 3x + 12 ) ( 3x + 12 )

   ⇒  9x² + 36x +36x + 144

         9x² + 72x + 144

    OR  take 9 common

   x² + 8x + 16

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