Question

3 π (2 π)^2 + 5 π^2 + 5 π - (3 π)^3 + π^2 - 4

Answer 1

3 π (2 π)^2 + 5 π^2 + 5 π - (3 π)^3 + π^2 - 4 = 

3 π x 4 π^2 + 5 π^2 + 5 π - 27 π^3 + π^2 - 4 = 

12 π^3 + 5 π^2 + 5 π - 27 π^3 + π^2 - 4 = 

12 π^3 - 27 π^3 + 5 π^2 + π^2 + 5 π - 4 = 

-15 π^3 + 7 π^2 + 5 π - 4