Question

(X+3)^2 using suitable identity

Answer 1

Answer :

We know that,

(a + b)² = a² + 2ab + b²

We have to expand (x + 3)²

Then, (x + 3)²

= x² + (2 * x * 3) + 3²

= x² + 6x + 9

Answer 2

To factorize :-

( x + 3 )²

using suitable identity.

Step by step explanation:-

we have,

(a + b )² = a² + b² + 2ab

put a = x and b = 3 in given identity.

( x + 3)² = x² + (3)² + 2.x.3

(x + 3)² = x² + 9 +6x ans.