Simplify the following algebraic expression:

- 3n(-n+4) - n(3 +7n)

-4n^2 + -15n

Step-by-step explanation:

-3n(-n + 4) - n(3 + 7n)

= -3n * -n + -3n * 4 + -n * 3 + -n * 7n

= 3n^2 + -12n + -3n + -7n^2

= -4n^2 + -15n

Cheers.

e) none of the above because the measure of angle cba is 101°

only 10/60 isn't equivalent

hope this : )