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Sergio [31]
3 years ago
15

Find in expanded form the total surface area

Mathematics
1 answer:
AlladinOne [14]3 years ago
4 0

Answer:

  38x^2 +14x -6

Step-by-step explanation:

  SA = 2(LW +WH +LH)

  = 2((4x +3)(x) +(x)(3x -1) +(4x +3)(3x -1))

  = 2(4x^2 +3x +3x^2 -x +12x^2 +5x -3)

  = 38x^2 +14x -6

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