The steps matter on the size of the number.

This ODE has characteristic equation


which has roots at
. Then the characteristic solution to the ODE is


The Pythagorean theorem a²+b²=c²
16²+18²=c²
256+324 = 580
√580
24=4x-6
(add six both sides)
30=4x
(divide 4 both sides.)
7.5=x (roughly)
Answer:

Step-by-step explanation:
