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lizzymonster
 one year ago
The area of a rectangle is 65 ft2, and the length of the rectangle is 3 ft less than twice the width. Find the dimensions of the rectangle.
lizzymonster
 one year ago
The area of a rectangle is 65 ft2, and the length of the rectangle is 3 ft less than twice the width. Find the dimensions of the rectangle.

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lizzymonster
 one year ago
Best ResponseYou've already chosen the best response.0What I have so far: 65ft^2=w(2w3) 65ft^2=2w^23w 2w^23w65 and then you're supposed to factor into two binomials, but I cant seem to find any factors that multiply to equal 65 and add make 3

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.12w^23w65 factors to (w+5)(2w13)

lizzymonster
 one year ago
Best ResponseYou've already chosen the best response.0but 13+5 doesnt equal 3, so how do you know?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1the rule works a bit differently because we have (2w^2) instead of just w^2 we can prove my factoring is correct using FOIL (w+5)(2w13) = (2w)(w)  13(w) + 10w  65 = 2w^2  3w  65

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1this video may be helpful https://www.youtube.com/watch?v=07gl8OuGPo
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