Question 1171024

{{{x^2+13x+40}}}....factor
{{{x^2+5x+8x+40}}}
{{{(x^2+5x)+(8x+40)}}}
{{{x(x+5)+8(x+5)}}}
{{{(x + 5)(x + 8) = 0}}}

{{{x^2-64}}}...factor
{{{x^2-8^2}}}
{{{(x-8)(x+8)}}}


the LCM of the polynomials is {{{(x + 5)(x + 8)(x-8)}}}