Answer:
t=40+20w
can i get a brainiest bottom right of my answer click the crown
Sry just add a triangle on each side took that test
Alright, lets get started.

We could write this square root as 

Using the property of 

is common in each term, so

Using property of 

Using property of 


log 10 value is 1 , hence
: Answer
Hope it will help :)
Answer:

Step-by-step explanation:
given,
y′′ + 4 y = 4 x
D² y + 4 y = 4 x
(D²+4) y = 4 x
now, writing Auxiliary equation
m² + 4 = 0
m² = -4
m = ± 2 i
now, complimentary function

a = 0 , b = 2

particular integral (y_p)
y_p = a x
y'_p = a
y"_p = 0
now,
y′′+ 4 y = 4 x
0+ 4 (a x )= 4 x
4 a x = 4 x
a = 1
now,
y_p = x
now, general equation

