Advertisements
Advertisements
प्रश्न
The following expression is the area of a rectangle. Find the possible length and breadth of the rectangle.
x2 + 19x – 20
Advertisements
उत्तर
We have,
Area of rectangle = x2 + 19x – 20
= x2 + (20 – 1)x – 20
= x2 + 20x – x – 20
= x(x + 20) – 1(x + 20)
= (x + 20)(x – 1)
∴ The possible length and breadth are (x + 20) and (x – 1).
APPEARS IN
संबंधित प्रश्न
Expand.
(p + 8) (p − 3)
Expand: `(m + 3/2)(m + 1/2)`.
Evaluate the following, using suitable identity
51 × 52
(x + a)(x + b) = x2 + (a + b)x + ______.
x2 + (a + b)x + ab = (a + b)(x + ab)
Using suitable identities, evaluate the following.
104 × 97
Using suitable identities, evaluate the following.
10.1 × 10.2
The following expression is the area of a rectangle. Find the possible length and breadth of the rectangle.
x2 – 3x + 2
The following expression is the area of a rectangle. Find the possible length and breadth of the rectangle.
x2 – 7x + 10
