Given is x = 3 h = 2 f ( x ) = x 2 + 2 x + 10what is the solution of f ( x + h )Is that correct? f ( x ) = x 2 + 2 x + 10 = ( 9 + 4 ) + 2 ( 3 + 2 ) + 10 = 13 + 10 + 10 = 33

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Given is  x  =  3    h  =  2    f  (  x  )  =      x    2    +  2  x  +  10what is the solution of   f  (  x  +  h  )Is that correct?  f  (  x  )  =      x    2    +  2  x  +  10  =  (  9  +  4  )  +  2  (  3  +  2  )  +  10  =  13  +  10  +  10  =  33

pereishen9g · Accepted Answer

In the formula  f  (  x  )  =      x    2    +  2  x  +  10think of the &quot;x&quot; as a box you get to fill in, that is,  f  (  ◻  )  =  (  ◻      )    2    +  2  (  ◻  )  +  10So you can put an x, or x+h, or anything you want, into the box. In particular, putting x+h into the box gives you  f  (  x  +  h  )  =  (  x  +  h      )    2    +  2  (  x  +  h  )  +  10Now since x=3 and h=2, you know                               x          +          h                      =  3  +  2  =                              5

Riya Andrews · Accepted Answer

Your basic idea is correct, but you are asked for   f  (  x  +  h  ) so that is what you should have on the left side, not   f  (  x  ). Then it might help to write out the function in terms of the variables first. The first term in the expression is not correct.

Need solve f(x)=x^2+2x+10

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