dianeenamorado dianeenamorado

06-05-2020
Mathematics

contestada

What are the solutions to this equation?
7x2 − 28 = 0

Respuesta :

mysticchacha mysticchacha

07-05-2020

Answer:

x = 2 or x = -2

Step-by-step explanation:

7x^2 - 28 = 0

7x^2 = 28

x^2 = 28/7 = 4

x = root(4) or x = -root(4)

x = 2 or x = -2

Answer Link

2023el00288 2023el00288

16-12-2020

Answer:

x=-2 & x=2

Step-by-step explanation:

PLATO

Answer Link

Otras preguntas

This is from Khan academy I have to attach a PNG if you can help me solve it! Thank you!

Select the correct answer. Which equation correctly relates kinetic energy, mass, and velocity? OA KE=m² OB. KE=mv2 OC. KE=mv OD. KE=mv3

Which systems of equations have no solution?

For the function below, list 4 ordered pairs for that function. y = 3x + 1

The ratio of winning tickets to tickets sold is 2 to 5. If 3,500,000 are sold, how many tickets are winners?

| -4 + 5\2 | - (-x) =-3

Area= Help me please!! Thank u so much

Specify any three challenges of human resources development in nepal

Simplify. (2 + 8i) + (3 + 8i)

Choose the word which best completes the sentence. I’ve been trying to learn to _____ over a curb on my skateboard. a. tail c. pop b. ollie d. none of the above