Question

The identity suitable to solve (x+3)(x+3) is...​

Answer 1

Answer:

(a+b)² = a²+2ab+b²

Step-by-step explanation:

(x+3)(x+3)

= (x+3)²

= (x)² + 2(x)(3) + (3)²

= x²+6x+9

Answer 2

Answer:

(x+3) (x+3)

(x+3)²

(a+b)² = a²+b²+2ab

(x+3)²

(x)²+(3)²+2×x×3

x²+9+6x