Correct Question :
[tex] {(x + 3)}^{2} [/tex]
Solution :
[tex]\boxed {\pink{{(a + b)}^{2} = a^2 + 2ab + b^2}}[/tex]
[tex] = {(x + 3)}^{2} \\ = x^2 + 2 \times x \times 3 + 3^2 \\ = x^2 + 6x + 9[/tex]
[tex]\therefore{\green {{(x + 3)}^{2}=x^2 + 6x + 9}}[/tex]
