Question

If x2

+ 7x + 12 represents the area of a rectangle then find its length and breadth.​

Answer 1

Answer:

area of rectangle is equal to length into breadth.

by splitting method

hands length is equal to -3

Step-by-step explanation:

Answer 2

Answer:

x + 4     &   x + 3

Step-by-step explanation:

⇒ x^2 + 7x + 12

⇒ x^2 + (4 + 3)x + 12

⇒ x^2 + 4x + 3x + 12

⇒ x(x + 4) + 3(x + 4)

⇒ (x + 4)(x + 3)

Most probably, (x + 4)(x + 3) is the area(=length x breadth). One of them must be length and other should be breadth

For every +ve x:  x + 4 > x + 3.

Therefore, x + 4 = length

                  x + 3 = breadth