Question

Did I do this correctly?

(x^2 +8)(x^3+7x-3)=
x^2(x^3+7x-3) + 8(x^3 + 7x-3)=
(x^2)(x^3)+(x^2)(7x)+(x^2)(-3)+(8)(x^3)+(8)(7x) + (8)(-3)=
x^5 + 7x^3 - 3x^2 + 8x^3+56x-24=
x^5+15x^3-3x^2+56x-24 ?????

Answer 1

yes, I used the box multiplication method