Question

the area of a rectangle is x² - 19x - 20 if the length of the rectangle is x - 1 find its breadth
please provide the answer with proper explanation ​

Answer 1

Answer:

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Step-by-step explanation:

We know that,

Area of a rectangle = length × breadth

Now, factorising the given expression,

$x^{2} + 20x - x- 20\\ x(x+2) -1(x-20)\\(x-1)(x-20)$
∴breadth is (x-20)