Ineed immediate .

in the figure, abc is a right-angled triangle with ab= 12 cm, bc= 24 cm and ∠abc= 90°. d, e and f points on bc, ac and ab respectively such that bdef is a rectangle. let ed= x

a) express cd and db in terms of x
b) if the area of the rectangle bdef is 40 cm^2, find the value of x

b

step-by-step explanation:

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function