Answer:
-x^3*(x + 1)
Step-by-step explanation:
Perform the indicated multiplication and then write out all the terms in descending order by powers of x:
-x^3(5x+1)+4x^4 = -5x^4 - x^3 + 4x^4
= -x^4 - x^3, or = -x^3*(x + 1)
Your answer is c hope i helped
Answer:

Step-by-step explanation:
rewritten using rational exponents
A) -9+18= 9 degrees ferhinhite
b) 67-(-25)= 92 degrees more