A2 + 5a – 3a2
A. 5a + 2a2
B. 5a – 2a2
C. 2a2 + 5a
D. 5a – 3a2

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are

-6 is the correct option from the above given options

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3