Prove 1+5+9+...+(4n-3) = n(2n-1) by induction

[zkusnierz]

Homework Statement

Use Mathematical induction to prove that the following equality hold for any natural number n. Show your work step by step.
1+5+9+ ... +(4n-3) = n(2n-1)

Homework Equations

The Attempt at a Solution

 

[Mark44]

What work have you done. Do you understand how math induction works?