Question

Solve and in standard form please. you must add. this is from khan academy

Answer 1

Hey there,

I wont be able to do it step by step because I have to leave real soon, But I really want to help you because this does look very hard. I used a calculate because I'm being rushed. Your answer would be in the attachment I left. I hope that would be the correct answer. You have a good week-end "Morganfredieu"

~Twizzie

Answer 2

We are asked to sum the two trinomials
`(-4f^3-5f+16)+(4f^2-f+9)`. We can start by using the distributive property to remove the parenthesis, giving us
`-4f^3-5f+16+4f^2-f+9`. Next, when we combine like terms, we get
`\boxed{-4f^3+4f^2-6f+25}`. Hope this helped!