Answer:
{x}={2}
{x}=\frac{{{10}-\sqrt{{-{4}}}}}{{2}}={5}-{i}={5.0000}-{1.0000}{i}
{x}=\frac{{{10}+\sqrt{{-{4}}}}}{{2}}={5}+{i}={5.0000}+{1.0000}{i}
Let's check with the pythagoras theorem,
65² = 33² + 56²
4225 = 1089 + 3136
4225 = 4225
As it obeys it, It is a right angle triangle.
Hope this helps!
sorry Malay yung question huhu
16. 1/8
17. 33/50
18. 2 1/2 (two and a half)
19. 3 3/4 or 15/4
20. 8/25
21. 19/100
22. 4/5
23. 193/200