fantasia399
fantasia399 fantasia399
  • 01-12-2019
  • Mathematics
contestada

Finding values or
k(x) = x - 2
h(x) = x2 +1
(h + k)(2) =

Respuesta :

gmany
gmany gmany
  • 01-12-2019

Answer:

(h + k)(2) = 5

Step-by-step explanation:

[tex](h+k)(x)=h(x)+k(x)\\\\\bold{METHOD\ 1:}\\\\k(x)=x-2,\ h(x)=x^2+1\\\\(k+h)(2)=h(2)+k(2)\\\\\text{Calculate}\ h(2)\ \text{and}\ k(2).\\\text{Put}\ x=2\ \text{to the equations of the functions}\\\\h(2)=2^2+1=4+1=5\\k(2)=2-2=0\\\\\text\\\\\text{Substitute:}\\\\(h+k)(2)=5+0=5[/tex]

[tex]\bold{METHOD\ 2:}\\\\k(x)=x-2,\ h(x)=x^2+1\\\\(h+k)(x)=h(x)+k(x)=(x^2+1)+(x-2)=x^2+x-1\\\\(h+k)(2)-\text{put}\ x=2\\\\(h+k)(2)=2^2+2-1=4+2-1=6-1=5[/tex]

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