HELP ASAP

AND IF YOU COULD EXPLAIN, THATD BE GREAT

-41

Step-by-step explanation:

the problem is basically saying that we need to first substitute 5 in for x in the f(x) function first.

then we need to take that answer that we got and substitute it for x in the g(x) function.

i will do this step by step for you

start with the f(x) function

f(x) = 4x + 3

substitute 5 in for x

f(x) = 4(5) + 3

solve

f(x) = 20 + 3

f(x) = 23

now we use our answer from the f(x) function we just solved, and we put it into the g(x) function.

basically you are going to now substitute 23 for x in the g(x) function.

i will also do this step by step for you.

take the g(x) function

g(x) = -2x + 5

substitute 23 for x

g(x) = -2(23) + 5

solve

g(x) = -46 + 5

g(x) = -41

so now your overall answer is -41.

hope this helped good luck <3

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

linear pair postulates