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

which is a reason democracy failed following most latin american revolutions

Jerry has two same size circles divided into same number of equal parts. One circle has 3/4 of the party shaded and the other has 2/3 of the part shaded. His si

what is 13 over 24 in simplest form

where does the overwhelming amount of seismic activity occur on the Earth's surface

Please help me. Attached is a picture of a triangle. I need to find the length of X through the Pythagorean theorem. Can you explain how to do this? I need to d

Burma is one of the countries that borders India. a. True b. False

All paragraphs should have one main idea. a. True b. False

During the Constitutional Convention, which plan of government proposed a bicameral legislature, with representation in both houses based on population? A. The

When the Moon reaches equal periods of orbital and rotational periods, it's known as _______ rotation. A. non-conforming B. imbalanced C. synchronous D. asy

What is 0.65 in expanded form