Leading coefficient of 3 and roots -4, i, and 2 all with multiplicity 1

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Nikolas calculated the volume of the prism. his work is shown below.

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org