Question

3x ( x² - 2x + 3 ) =
2 ( a² + 3a - 4 ) =
5a² ( a3 - 2 ) =

Answer 1

         $3x(x^2-2x+3) = 3x^3-6x^2+9x$

         $2(a^2+3a-4) = 2a^2+6a-8$

         $5a^2(a^3-2)=5a^5-10a^2$