Question 214713
-[(6n-3) + 7n (n+8)] - 4n (-2n-3) - 2n(1+2n)



-(6n-3) - 7n(n+8) - 4n (-2n-3) - 2n(1+2n)



-6n+3 - 7n^2-56n +8n^2+12n - 2n-4n^2


-3n^2-52n+3


Answer: -[(6n-3) + 7n (n+8)] - 4n (-2n-3) - 2n(1+2n) = -3n^2-52n+3