Question

If f(x) = 2x2 − 10, find f(5).

Answer 1

Put x = 5:

\[\huge \color{blue} {f(5) = 2(5)^2 - 10}\]

Solve now..

Answer 2

40

Answer 3

Yes dear..

Answer 4

Replace 5 everywhere you see x

\(f(x)=2x^2-10\)
\(f(5)=2(5)^2-10\)

Answer 5

since x = 5

Answer 6

10

Answer 7

No dear you were right earlier...

Answer 8

Dear?

Answer 9

friend, buddy etc etc..

Answer 10

So, what is the value of f(x) you got @ivandelgado6 ??

Answer 11

its 10

Answer 12

So how did you calculate 40 earlier??

Answer 13

What is the square of 5??