Question

(x+3) (x+3) solve using identity

Answer 1

hi there!!!

( x+3) ×( x+3) = (x+3) ^2

now,

by the identity,

=> (a+b) ^2= a^2+2ab+b^2

hence,

(x+3)^2=x^2+2×x×3+3^2

= x^2+6x+9

hope this helps! ☺✌♥

Answer 2

$\huge\rm\color{midnightblue}{Solution:-}$

$\implies$$(x+3)(x+3)$

$\implies$ $(x+3){}^{2}$

$\implies$$x{}^{2}+(3){}^{2}+2×x×3$

$\implies$$x{}^{2}+9+6x$

or

$\implies$$x{}^{2}+6x+9$