Help taking timed test which ones all apply to problem

n = -1

n = 8

Step-by-step explanation:

3n^2=21n+24

0=-3n^2+21n+24

0=-3(n^2-7n-8)

0=-3(n+1)(n-8)

0=n+1

n=-1

0=n-8

n=8

N = 8 n N = -1

just substitute the values of n in the equation

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c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.