Which expression is equivalent to 3x(-4x^2+5x-8)-6(x^2-5x+7)?

a. 12x^3-9x^2+6x-42
b.-12x^3-54x^2+6x-42
c.-12x^3+9x^2+6x-42
d.-27x^3-6x^2+6x-42

7,24

step-by-step explanation:

he has now walked a total of what?

if i know what this is maybe i can

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

what steps are you having us

step-by-step explanation: