Select the general solution to the equation. y" + 16y = 0 y = c_1e^4x + c_2xe^4x y = c_1 cos(-4x) + c_2 sin (-4x) y = c_1 cos(4x) + c_2 sin(4x) y = c_1e^4x + c_2e^-4x

Hello everybody. can anybody me come up with detailed study plan on what topics to study from algebra 1 & 2, trig, and any other topic nesscery for success as a new beginner in pre-calculus. i dont have much math history but the basics. this will greatly me.

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

What is the sum of these mixed numbers 2 1/8 + 4 3/8