Answer:
4x2–12x+33=0
Resta 4x
2
en los dos lados. Cualquier valor restado de cero da como resultado su valor negativo.
−12x+33=−4x
2
Resta 33 en los dos lados.
−12x=−4x
2
−33
Divide los dos lados por −12.
−12
−12x
=
−12
−4x
2
−33
Al dividir por −12, se deshace la multiplicación por −12.
x=
−12
−4x
2
−33
Divide −4x
2
−33 por −12.
x=
3
x
2
+
4
11
Resolver para x_2
x
2
=3x−
4
33
Step-by-step explanation:
Answer: 11am
Step-by-step explanation:
To solve this, we have to calculate the lowest common multiple of 20 and 30. This will be:
20 = 20, 40, 60, 80, 100
30 = 30, 60, 90, 120, 150.
Here, the lowest common multiple is 60.
Therefore, we add 60 minutes to 10am. This will be:
= 10am + 1 hour
= 11 am
The next time that both buses leave at the same time would be 11am
(-2,-3)
I. (+,+)
II. (-,+)
III. (-,-)
IIII. (+,-)
