Instructions: EValuate the function at each specified independent variable value and simplify. Please provide detailed working and explanation for each step. Thank you ?

2x + 5, x 5 0 38. f(x) 12 - x2, x >0 (a) f(-2) (b) f(0) (c) f(1) (x2 + 2, xSI 39. f (x) = 2x2 + 2, x > 1 (a) f(-2) ( b ) f ( 1 ) (c) f ( 2) 40. f(x) x2 - 4, 1 - 2x2, x > 0 (a) f(- 2) (b ) f (0 ) (c) f(1)