Question

subtract 8y - y² - 4 from 3y² + 5y - 4​

Answer 1

Step-by-step explanation:

(3y^2+5y-4) -(8y-y^2-4)

= 3y^2+5y-4-8y+y^2+4

= 4y^2-3y

Answer 2

$\huge\colorbox{pink}{☘ Answer☝}$

$\huge\colorbox{pink}{Explanation⬇️}$

Therefore,from the above attachment you can see the soloution so:

1. So first I have arranged the constants and variables.
2. And in second I have started to solve the question and I have change symbols (-,+) also.

Hope it helps you ☺️