1.

Find the length of side of a square whose area is given by X square + 6 X + 9 cm square ​

Answer»

ANSWER:

x + 3

Step-by-step explanation:

 LET the side of SQUARE be a, then area should be a^2.

Here,

⇒ Area = x^2 + 6x + 9

⇒ Area = x^2 + 2(3)x + 9

⇒ Area = x^2 + 3X + 3x + 9

⇒ Area = x( x + 3 ) + 3( x + 3 )

⇒ Area = ( x + 3 )( x + 3 )

⇒ Area = ( x + 3 )^2

  Comparing :

⇒ a^2 = ( x + 3 )^2

⇒ a = x + 3 = side

   Side of square is x + 3



Discussion

No Comment Found

Related InterviewSolutions