Question

1. Use a suitable identity to find the product:
(i) (x + 3)(x + 3)​

Answer 1

Answer:

I think we have to use the identity (a+b)square=

a square+ 2ab + b square

Step-by-step explanation:

here, x square+2×x×3+3square

= x square+6x+9

Answer 2

Step-by-step explanation:

(i) (x + 3)(x + 3)

using = (a + b)(a + b) = a(a + b) + b(a + b)

= x(x + 3) + 3(x + 3)

= x^2 + 3x + 3x + 9

= x^2 + 6x + 9