2 Math ?s to Warm You Up

<p>alg 2 sat wrmup. show work.</p>

<p>simplify</p>

<p>( (x-h)/(x+h+1) - (x)/(x+1) ) / h</p>

<p>simplify</p>

<p>f(x)=5x-x</p>

<p>( f(5+h) - f(5) ) / h</p>

<p>Answers will be verified if solved.</p>

<p>The second one looked like the derivative</p>

<p>(lol I’m bad at this)
here are my steps

  1. ((xh-h^2)/(x+h+1))-((xh/(x+1))
  2. [(xh-h^2)(x+1)-(x^2h+xh^2+xh]/(x^2+xh+2x+h+1)
  3. h[x^2-xh+x-h-x^2-xh-x]/(x^2+xh+2x+h+1)
  4. h[-h-2xh]/(x^2+xh+2x+h+1)
    this is probably wrong, didn’t come out clean
    skipped steps, is it really simplifying as opposed to expanding?</p>

<p>second one
I swear you could just take the derivative and it’ll be like 4

  1. [5(5+h)-(5+h)]-20]/h
  2. [25+5h-5-h]-20]/h
  3. 4</p>

<p>didn’t see that coming…</p>

<p>oh wait, isn’t the first one a derivative too…no wait otherwise it would be (x+h) instead of (x-h)</p>

<p>isn’t this more like precalc warmup?</p>