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Nostrana [21]
3 years ago
8

I’m trying to do this equation but don’t know where the 2 came from when you square it. Can somebody explain where the 2x come f

rom? The 2x on the right side

Mathematics
1 answer:
elena55 [62]3 years ago
4 0
Okay so at the bottom it says square both sides so you have to square (x+1). when you do that you're basically just doing (x+1)(x+1) and you just use the foil method and end up with x^2 + 2x + 1
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