Question 75404
{{{(2x-3)*(5x^2+x+4)}}}
={{{2x*(5x^2+x+4)-3*(5x^2+x+4)}}}
={{{2x*5x^2+2x*x+2x*4-3*5x^2-3*x-3*4)}}}
={{{10x^3+2x^2+8x-15x^2-3x-12}}}
={{{10x^3+2x^2-15x^2+8x-3x-12}}}
={{{10x^3-13x^2+5x-12}}}
ok