shacorilowe678 shacorilowe678

04-02-2020
Mathematics

contestada

Solve the quadratic equation for x. What is one of the roots?

2x2 + 9x − 5 = 0
A) −
1
2
B) −
1
5
C)
1
2
D)
1
5

Respuesta :

Аноним Аноним

04-02-2020

Answer:

x₁ = 0,5

x₂ = - 5

Step-by-step explanation:

2x² + 9x - 5 = 0

2x² + 10x - x - 5 = 0

2x(x + 5) - (x + 5) = 0

(2x - 1)(x + 5) = 0

2x - 1 = 0 ⇒ 2x = 1 ⇒ x₁ = 1/2 ⇒ x₁ = 0,5

x + 5 = 0 => x₂ = - 5

Answer Link

Otras preguntas

differemces between liquid pressure and air pressure . give this answer is box

The act requirement of a criminal violation, called the ________, requires the government to prove that a defendant’s actions objectively satisfied the elements

The public health team informs the community that acanthamoeba may be transmitted in which stage(s) of its life cycle?

30% of 70 is what percent of 2000?

how would i solve this?

The age of a father is three times that of his son. In ten year's time their ages will add up to 68 years. If the son is x years old today write down an algebra

What is the tenth term in the sequence 9, 13, 17, 21, 25…?

What was the biggest civil rights issue facing african americans in the north in the 1960s?

There is some evidence that mineral loss may be greater in athletes than in the sedentary population. a. true b. false

what was the purpose of Executive Order 9906?