If you are uncomfortable cutting and reconnecting LED strips we suggest you try one of the following:
1) Placing Strips End to End
If you have purchased two strips, we suggest simply placing them end to end to achieve the same effect as a connected strip. Then group the positive and the negative wires from the two strips together. Now, you should have one positive wire and one negative wire which you can then run to your main power source.
2) Purchasing Longer Strips