Question

Expand.
Combine like therms if needed
(3x +8)^2

Answer 1

(3x+8)(3x+8)
9x^2+24x+24x+64
9x^2+48x+64

Answer 2

9x^2+48x+64

Explanation:

(3x+8)^2

=(3x+8)(3x+8)

=(3x)(3x)+(3x)(8)+(8)(3x)+(8)(8)

=9x2+24x+24x+64

=9x2+48x+64