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Picture below I have been trying to figure it out but I’m lost

Picture below I have been trying to figure it out but I’m lost-example-1
asked
User Searles
by
8.4k points

1 Answer

3 votes

Answer:

CD = 4² - 3 - 11

BC = 3² + 11 - 12

Perimeter = 5³ + 24² + 6 - 38

Explanation:

To get CD, Subtract AB from FE.

  • CD = 2x³ + 4x² - 5x - 7 -*(2x³-2x+4)
  • CD = 2x³+4x²-5x-7-2x³+2x-4
  • CD = 4x²-3x-11

NB : For easiness, add (-1) rather than (-).

To get BC, subtract DE from FA

  • BC = 8x²+5x-12-(5x²-6x)
  • BC = 8x²+5x-12-5x²+6x
  • BC = 3x²+11x-12

To get the perimeter, Add all sides.

  • 2x³+4x²-5x-7+3x²+11x+12+4x²-3x-11+5x²-6x+2x³-2x+4+8x²+5x-12
  • 5x³+24x²+6x-38
answered
User Bjonen
by
7.8k points

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