Mathematics: PLEASE help, i will give brainliest 3 Please simplify then determine the value of the polynomial when n=3 and when n=2. a) (5n^2 + 3n -4) + (-3n^2 + 4n -1) b) (7n^2 - 5n - 2) - (-n^2 + 6n + 8)

PLEASE help, i will give brainliest 3 Please simplify

khenalilovespandas

29.01.2022

a. 34

b. 0

Step-by-step explanation:

you plug the n values as n

note when -n^2, you do this:

$-(2)^{2}$ = -4

so don't mistake it for +4

pay special attention to the signs to solve like:

+ times - is a negative!

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juarezanthony258

13.10.2022

Step-by-step explanation:

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