lindseylewis313 lindseylewis313

20-09-2020
Mathematics

contestada

If 2 - 4x = 18, evaluate x^2+ 2x – 1.

Respuesta :

christineangeline christineangeline

20-09-2020

Answer:

7

Step-by-step explanation:

2 - 4x = 18

-4x = 18 - 2

-4x = 16

4x = - 16

x = -16/ 4

x= -4

substitute x=4 ,

x ^ 2 + 2x -1

-4^2 + 2×-4 - 1

16 - 8 - 1

7

Answer Link

Otras preguntas

The Tuskegee Airmen and other African American recruits fought in __ units.

what famous books has Macmillan published

For what reason does Mukharji most likely use sarcasm to describe his experiences in London?A. He doesnt want to insult all British people, since he found some

Which of the following are NOT an Antiterrorism Level I theme

Please explain if you can

Facing a Giant It was the defining moment of my otherwise unremarkable time on our school's softball team. My performance on the team had been modest at best, a

What would be the value for the ideal gas constant (R) if pressure (P) is in kilopascals, temperature (T) is in kelvins, volume (V) is in liters, and amount of

Which THREE sentences have the correct subject-verb agreements according to their pronoun subjects? Somebody from work want to take my shift tomorrow. Each of t

Which of the following is not true about Stage Model of Relational Development

In the nation of Hamsterville most goods, services, and resources are allocated in markets. However, some goods are provided by the government, such as healthca