Question

is my answer: 2x^3 - x^ -13x -15
to:
(x)= 2x^3-5x; g(x)=x^2+8x+15

Answer 1

What?

Answer 2

for Find f − g and its domain.

Answer 3

\(\bf f(x)= 2x^3-5\qquad \qquad g(x)=x^2+8x+15\\ \quad \\
(f-g)(x) =[2x^3-5]\quad -\quad [x^2+8x+15] \)

Answer 4

i don't understand. my answer for:Find f + g and its domain. would be 2x^3 + x^2 + 3x + 15 so would that mean if I am looking for f-g it would be: -2x^3 - x^2 -13x -15

Answer 5

\(\bf f(x)= 2x^3-5\qquad \qquad g(x)=x^2+8x+15\\ \quad \\
(f-g)(x) =[2x^3-5] - [x^2+8x+15]\implies 2x^3-5-x^2-8x-15\\ \quad \\
2x^3-x^2-8x-20\)

Answer 6

what do you mean by qquad?