Question 342577
{{{(x + 4)(x^2 - x + 9) =x(x^2 - x + 9)+4(x^2 - x + 9)}}}
{{{(x + 4)(x^2 - x + 9) =(x^3 - x^2 + 9x)+(4x^2 - 4x + 36)}}}
{{{(x + 4)(x^2 - x + 9) =x^3 + 3x^2 + 5x + 36}}}