X * y = 30
x + y = - 3
--------------
y = - 3 - x
x * ( - 3 - x ) = 30
- 3 x - x² = 30
x² + 3 x + 30 = 0
x 1/2 = ( - 3 +/- √(9 - 120 ) ) / 2 =

Answer: Those two numbers are:
Answer:
264 cm³
Step-by-step explanation:
19. C
20. B
21. 200
22. im not sure if im right but i think p+6
23. C
24. Can't see
Answer:
111630
Step-by-step explanation: