SAT, 11.03.2020 05:40 k11kiki

(- 1 - 5n + a * n ^ 2) - (7n - 4n ^ 2 + 9) = 12n ^ 2 - 12n - 10 the equation above is true for all values of n where a is a constant, what is the value of a?

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(- 1 - 5n + a * n ^ 2) - (7n - 4n ^ 2 + 9) = 12n ^ 2 - 12n - 10 the equation above is true for all v...