1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
VikaD [51]
3 years ago
12

X squared -6x=7 for completing the square

Mathematics
1 answer:
Tcecarenko [31]3 years ago
8 0
Take 1/2 of linear coefient (-6), so 1/2 of -6 is -3
square it  (  (-3)^2=9)
add that to both sides
x^2-6x+9=7+9
x^2-6x+9=16
factor perfect square trinomial
(x-3)^2=16
sqrt both sides, remember to take positive and negative roots
x-3=+/-4
add 3
x=3+/-4
x=-1 or 7
You might be interested in
S 8,000 a good estimate for the sum of 3,816 and 467?
Damm [24]

Answer:

it is  not a good estimate.

Step-by-step explanation:3816 can be rounded to 4000 and 467 can be rounded to 500. Adding 4000+500 gives 4500, which isn't near 8000.

i hoped this helped :)

<3

7 0
3 years ago
Is the expression 4 - x the same as x – 4? Explain
jarptica [38.1K]

Answer:

Yes

Step-by-step explanation:

The order of the factors does not alter the product

4 0
3 years ago
Read 2 more answers
How do i acquire wealth, how do i get rich
Delvig [45]
Rich in the world Become a youruber
4 0
3 years ago
In a particular country, there are two types of currency: Kabuls and Carumpts. 8 Kabuls and 2 Carumpts are worth $61.70. 3 Kabul
Misha Larkins [42]

Answer:

Kabuls = 7.5

Carumpts= 0.85

Step-by-step explanation:

Let x represent the price of kabuls

Let y represent the price of carumpts

8x + 2y= 61.70......equation 1

3x + 10y= 31.........equation 2

Multiply equation 1 by 3 and equation 2 by 8

24x + 6y= 185.1

24x + 80y= 248

-74y = -62.9

y= 62.9/74

y= 0.85

Substitute 0.85 for y in equation 1

8x + 2(0.85) = 61.70

8x + 1.7= 61.70

8x = 61.70-1.7

8x = 60

x= 60/8

x= 7.5

Hence the dollar value for kabuls is 7.5 and carumpts is 0.85

3 0
2 years ago
What is the x-coordinate of the point that can be plotted on the graph between (6, 2) and (12, 4) that is part of this set of eq
vampirchik [111]

Answer:

zero is the point between ( 6,

2 )and( 12,4)

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of the expression <br> 3.2(2.3)−4.8
    7·2 answers
  • Consider the line y=-4x+5.
    6·1 answer
  • 3x+ 2y= 4 solving for x
    15·2 answers
  • A box contains orange balls and green balls. The number of green balls is seven more than three times the number of orange balls
    15·1 answer
  • How much would you pay for 12.5 gallons of gasoline at $2.20per gallon?
    12·1 answer
  • MATH SMARTIES I WILL GIVE BRAINLIEST AND CAN YOU EXPLAINE WHY YOU THINK ITS THAT ANSWER (SHOW WORK) SO I CAN UNDERSTAND THANK YO
    10·2 answers
  • How many quarts of pure antifreeze must be added to 8 quarts of a 10% antifreeze solution to obtain a 60% antifreeze solution
    7·1 answer
  • Write the following number words in symbols. 1.one hundred twenty-seven thousand, four hundred fifty-nine 2.Two hundred six mill
    14·1 answer
  • Is x ^ 2 + y ^ 2 = 6 a function?
    12·1 answer
  • Please answer within the next 7 min, giving 38 points of a ligament answer!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!