Question

] What is the simplified form of the expression the square root of the quantity 16 times c to the fourth power. − the square root of c squared. + 3the square root of c squared. + the square root of the quantity 9 times c squared.?
Choose one answer.
a. 4c2 + 5c
b. 4c2 + 7c
c. 8c2 + 5c
d. 8c2 + 7c

Answer 1

sqrt16*c^4 -sqrt c^2 +3sqrt c^2 +sqrt 9c^2 =

4c^2 - c +3c + 3c =

4c^2 +5c

so than a. is right