find the product. (x+3)(x^2-3x+9)

Answer 1

Work it out using the distributive property of multiplication over addition:
such as:
23*46
=(20+3)(40+6)
=20(40+6)+3(40+6)
=800+120 + 120+18

(x+3)(x^2-3x+9)
=x(x^2-3x+9) + 3(x^2-3x+9)
=x^3-3x^2+9x + ...