I just bought a Dell Inspiron 15 (5566) laptop. It came with 6GB DDR4 RAM and is (according to Crucial) expandable to 16GB. I want to increase RAM but want the best bang for the buck (i.e. i don't think I want to spend $125, I only paid $285 for the laptop new). What's my best option? I think it has a 4GB and a 2GB. Also, I'm a novice at this, please help. Thanks.
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