What is the standard form of $y= (x-1)^2+2x$ ?

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Answer 1 · 2018-03-25T20:19:05

$y=x^2+1$

We have $y=(x-1)^2+2x$

First expand:

$y=(x^2-2x+1)+2x$

Then combine similar terms:

$y=x^2+(2x-2x)+1$

$y=x^2+1$

Remember to write all terms in order of decreasing degree (decreasing powers of $x$ ).

What is the standard form of y= (x-1)^2+2x y= (x-1)^2+2x ?