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Its asking to expand and simplify an expression for the area of this rectangle. ​

Its Asking To Expand And Simplify An Expression For The Area Of This Rectangle class=

Sagot :

ManpreetCheemaidn

Answer:

4x^2 + 11x - 20

Step-by-step explanation:

  1. area is width X height
  2. multiply the width (4x - 5) and the height(X + 4)
  3. I always imagine a multiplication grid for this kind of problem, with X and +4 at the top and 4x and -5 going down, and then combine terms
  4. you get 4x^2 + 11x - 20
Winifredgeorge864idn

Answer:

(4x-5)(x+4)

  • 4x squared- 16x -5x - 20
  • 4x squared-21x - 20
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