alexisgoff alexisgoff

18-05-2021
Mathematics

contestada

Solve for x.

x2 + 4x - 21 = 0

A.) -3,-7
B.) -3,7
C.) 3,-7
D.) 3,7

Respuesta :

dronslover dronslover

18-05-2021

Answer:

x=3 or x= −7

Step-by-step explanation:

Answer Link

goddessboi goddessboi

18-05-2021

Answer:

C) 3,-7

Step-by-step explanation:

x² + 4x - 21 = 0 (Given)

(x+7)(x-3) = 0 (Factor)

x+7 = 0 and x-3 = 0 (Zero Product Property)

x = -7 and x = 3 (Final Solutions)

Therefore, C is correct

Answer Link

Otras preguntas

Roosevelt launched the second new deal because of the failure of his initial policies to pull the country out of the depression and because of the growing popul

what does consecutive mean

Define the following terms: - relief - ground - etch

A set of numbers is shown: {0, 2.6, 4.2, 5, 10, 15} Which of the following shows all the numbers from the set that make the inequality 5x + 3 ≥ 28 true?

Explain how motion and energy are related to roller coasters, please be specific!

the sum of two consecutive even integers is -298. what are the integers?

If the earth's axis were at 90° to the sun, what would be different?

1. What do you think of Jonas’s community? What words might you use to describe it? Give reasons for your answers.

What does mean that “When you point a finger at the moon to indicate the moon, instead of looking at the moon,the stupid ones look at your finger.” ― Mao Tse-t

CAN SOMEBODY HELP ME PLZ