Subtract as indicated. 4
7
-
(
5
15
4
7
5 15
(Simplify your answer. Type an integer or a simplified fraction.)

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

27 +27 or 27times 2=54

the diffrence is 0

x:       y:  

-1         4

0         4

1         6

2         18

3         20