afafathima21 afafathima21

09-03-2021
Mathematics

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the area of a rectangle is (4x² - 100) and its width is (x + 5). find the length of the rectangle

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moraana moraana

09-03-2021

l*b-4x^2-100
l*x+5=4x^2-100
l=4x^2-100/x+5
L=4x-20

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