Question

1)f(x) = -x + sqrt 4 - x^2 Find f(-2)

-(-2) + sqrt 4 - (-2)^2 =

2 + sqrt 4 + 4

2 + sqrt 8 = 4.828

Is this correct?

Answer 1

-(-2) + sqrt 4 - (-2)^2 =

2 + sqrt 4 + 4
No 2 + sqrt 4 - 4