SOLUTION: How do I do this problem? Functions. If f(x) = 2x^2 + 17, find the following. f(2) f(sqrt 17) f(2 + sqrt 17) f(2) + f(sqrt 17) f(4x)

Question 786373: How do I do this problem? Functions.
If f(x) = 2x^2 + 17,
find the following.
f(2)
f(sqrt 17)
f(2 + sqrt 17)
f(2) + f(sqrt 17)
f(4x)

Answer by waynest(281) (Show Source): You can put this solution on YOUR website!
f(2) = 2(2)^2 + 17
= 2(4) + 17
= 8 + 17
= 25
f(sqrt17) = 2(sqrt17)^2 + 17
= 2(17) + 17
= 34 + 17
= 51
f(2 + sqrt17) = 2(2 + sqrt17)^2 + 17
= 2(4 + 4sqrt17 + 17) + 17
= 8 + 8sqrt17 + 34 + 17
= 59 + 8sqrt17
f(2) + f(sqrt) = (2(2)^2 + 17) + (2(sqrt17)^2 + 17)
= 25 + 51
= 76
f(4x) = 2(4x)^2 + 17
= 2(16x^2) + 17
= 32x^2 + 17

RELATED QUESTIONS
17. If f(x) = �x3 � x2 + 2x + 6, find f(�2), f(0), and... (answered by oscargut)

If f(x+y)=f(x)+f(y) and f(1)=17, find f(2), f(3), and f(4). Is f(x+y)=f(x)+f(y) for all... (answered by ikleyn)

4x^2+17=15 I need to know how to work these types of problems also x/2=8 How do you work (answered by stanbon)

If I have the equation f(x)=3x^3-43x^2+161x-49 are the real zeros 7 and 1/3. If so how do (answered by ewatrrr)

how do I find the domain for x? in this problem... (answered by lynnlo)

I don't understand functions, I really need help. 17.) Let f(x)= 5x and g(x)=-2x-3.... (answered by josgarithmetic)

f(x)=sqrt(3x+2) (answered by jim_thompson5910)

If f(x)={{{ sqrt(-x) /(x^3 + 2x^2 -3x) }}} , find the domain of... (answered by Fombitz)

How do i find the domain for... (answered by Gogonati)