Q

# Use a suitable identity to get each of the following products. (x + 3) (x + 3)

Q : 1      Use a suitable identity to get each of the following products.

(i) $(x+3)(x+3)$

Views

(x + 3) X (x +3) = $(x +3)^{2}$
So, we use identity I for this which is
$(a+b)^{2} = a^{2} + 2ab + b^{2}$
In  this  a=x and b = x
$(x+3)^{2} = x^{2} + 2(x)(3)+ 3^{2}$
=$x^{2} + 6x+ 9$

Exams
Articles
Questions