Question

Question 93 (iv)

The following expression is the area of a rectangle. Find the possible length and breadth of the rectangle.

$x^2+19x-20$

Answer 1

We have,
Area of rectangle= $x^2+19x-20$
$x^2+(20-1)x-20=x^2+20x-x-20=x(x+20)-1(x+20)=(x+20)(x-1)$

$\therefore$ The possible length and breadth are (x+20) and (x-1).