bromario245 bromario245
  • 25-05-2020
  • Mathematics
contestada

What are the solutions to the equation x2 - 8x = 10

Respuesta :

altavistard
altavistard altavistard
  • 27-05-2020

Answer:

x = 4 ±√26

Step-by-step explanation:

Please write this as x^2 - 8x = 10, or x^2 - 8x - 10 = 0.  " ^ " indicates exponentiation.

Let's complete the square:

x^2 - 8 x can be rewritten as

x^2 - 8x + 16 - 16, and so

x^2 - 8x = 10 becomes x^2 - 8x + 16 - 16 - 10 = 0, or

                                         (x - 4)^2 = 26

Taking the square root of both sides, we get:

x - 4 = ±√26, or

x = 4 ±√26

Answer Link

Otras preguntas

Define consumption in your own words.​
name the three crystalline forms of carbon​
How does the quote earth ten only planet in our solar system that is covered in water make you feel? What comes to your mind as you read this quote.
2. Why was Peak feeling confused and mad?
Someone can I help with this or how I need yo do?
Read the passage. [1] Make a charming sign for your front entryway. [2] You'll need a 1x6 board, paint, glitter, glue, and fall leaves. [3] Start by layering th
How far does the runner travel in 10 s going a velocity of 4m/s
Which is correct????:
A bag contains 8 red marbles, 9 yellow marbles, and 7 green marbles. how many additional red marbles must be added to the 24 marbles already in the bag so that
You want to estimate the proportion of students at your university in favor of a longer spring break. Changing the confidence level from 95% to 90% will make th