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31 December, 05:09

The same style blanket in size B has width 2x + 10 and length 4x - 10. Write a polynomial

expression, in simplified form, that expresses the difference in area of the blankets A and B. Show

all your work.

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Answers (1)
  1. 31 December, 05:37
    0
    Answer:A=8x^2 + 20x - 100

    Step-by-step explanation:

    The area of rectangle is:

    A = length * width

    A = (2x+10) (4x-10)

    So now expand the bracket8

    A=8x^2 - 20x + 40x - 100

    A=8x^2 + 20x - 100
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