Given:
( x + 8)(x + 3)
To multiply the binomial, we use FOIL method as shown below:
[tex](a+b)(c+d)=ac+ad+bc+bd[/tex]So,
[tex]\begin{gathered} \mleft(x+8\mright)\mleft(x+3\mright)=(x)(x)+(x)(3)+(8)(x)+(8)(3) \\ \text{Simplify} \\ =x^2+3x+8x+24 \end{gathered}[/tex]Next, we collect like terms:
[tex]\begin{gathered} =x^2+(3x+8x)+24 \\ \text{Simplify} \\ =x^2+11x+24 \end{gathered}[/tex]Therefore, the answer is:
[tex]x^2+11x+24[/tex]