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The length of a rectangle is 3 cm greater than its width. the area of the rectangle is 180 cm². find the length and the width.

Respuesta :

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Answer:

L=15  W=12   15*12 = 180

Step-by-step explanation:

W*L = area

W*(W+3) = 180

Do the distributive

W^+3 W-180=0

Find 2 numbers that when multiplied ,the result is -180

and when added the result is 3

      - 12* 15  = -180

        -12 +15 = 3