Please Answer the question with the formula and simplification

1/2

Step-by-step explanation:

-4    3     15    -14

--- *--- *   --- *

5   7      16     9

Rewriting

-4    3     5*3   -7*2

--- *--- *   --- *

5   7      4*4     3*3

Canceling like terms

-1    1     1*1   -1*2

--- *--- *   --- *

1   1      1*4     1*1

This leaves

2

---

4

1/2

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3