Mathematics, 09.01.2020 15:31 Carlosruelas2824
The length of a rectangle is 1 meter less than its width. the area of the rectangle is 42 square meters. find the dimensions of the rectangle.
Answers: 2
![w(w-1)=42\\\\\Rightarrow w^2-w=42\\\\\Rightarrow w^2-w-42=0\\\\\Rightarrow w^2+6w-7w-42=0\\\\\Rightarrow (w+6)(w-7)=42\\\\\Rightarrow w=7 or w=-6 \\\\\Rightarrow w=7....[\text{w cannot be negative}]](/tpl/images/0448/5528/f3409.png)
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The length of a rectangle is 1 meter less than its width. the area of the rectangle is 42 square met...
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