Answer:
5/6
Step-by-step explanation:
2/
3
: 4/
5
= 2/
· 5/
4
= 2 · 5/
3 · 4
= 10/
12
2 · 6
= 5/
6
D
A=-5
5 and -5 (±5)
x²-8=17
x²=25
√x²=√25
x=±5