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
hodyreva [135]
3 years ago
7

Use the method of completing the square to solve x2-8x+7=0

Mathematics
2 answers:
11111nata11111 [884]3 years ago
8 0

A should be your answer no 100 %


musickatia [10]3 years ago
8 0

Solution, solve\:for\:x,\:x^2-8x+7=0\quad :\quad x=7,\:x=1

Steps:

Solve\:with\:the\:quadratic\:formula, \mathrm{For\:}\quad a=1,\:b=-8,\:c=7:\quad x_{1,\:2}=\frac{-\left(-8\right)\pm \sqrt{\left(-8\right)^2-4\cdot \:1\cdot \:7}}{2\cdot \:1},\\

x=\frac{-\left(-8\right)+\sqrt{\left(-8\right)^2-4\cdot \:1\cdot \:7}}{2\cdot \:1}:\quad 7

x=\frac{-\left(-8\right)-\sqrt{\left(-8\right)^2-4\cdot \:1\cdot \:7}}{2\cdot \:1}:\quad 1\mathrm{The\:final\:solutions\:to\:the\:quadratic\:equation\:are:} x=7,\:x=1

The correct answer is <u><em>B.</em></u>

You might be interested in
the father is 30 years older than his son.after 10 years from now ,the sum of their ages is 64.what are their ages right now
prohojiy [21]
24 the answer is 24 

(just because i dont have enough characters soooooo LOLOLOLOLOL)
7 0
3 years ago
Read 2 more answers
Choose the answer that correctly simplifies the equation: 3 x (6 x 7 – 2.5 x 4)
Andre45 [30]
<span>3 x (6 x 7 – 2.5 x 4)
=</span><span>3 x (42-10)
</span>=3 x 32
=96
answer<span> D) 96</span>
5 0
3 years ago
Read 2 more answers
I need answer asap please, This is due at the end of tommorow
kicyunya [14]

Answer:

se broo lo ciento  no

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
15. True or False: Is x = 4 a solution to X + 51 = -9<br> True<br> False
lora16 [44]

Answer:

False

Step-by-step explanation:

if x=4 the answer would not be -9

x+51 would add up to 55

so it would be : 4+51=55

now if we wanted the answer to be -9 , x would have to be different

-60+51=-9

but in this case x is no -60, it's 4, so no this statement is false.

4 0
3 years ago
Read 2 more answers
• An equation written as Ax + By = C, where A, B, and C are<br> real numbers is said to be in the
djyliett [7]

Answer:

standard form

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

7 0
4 years ago
Other questions:
  • A manufacturer of brand A jeans has daily production costs of Upper C equals 0.3 x squared minus 114 x plus 11 comma 405​, where
    15·1 answer
  • At a movie store, Erin pays a monthly fee and is charged for each movie she rents. The table shows the monthly cost when Erin re
    7·1 answer
  • What is the answer to this?
    9·1 answer
  • How do I rationalize the denominator
    11·1 answer
  • Two integers be very and sign
    6·1 answer
  • 25.6%, 38.2%, 6/23, 3/10 greatest to least
    14·1 answer
  • −6(4a +3) Multiply the polynomial below
    12·2 answers
  • A computer programmer had two files with a total size of 76.75 gigabytes. If one of the files was 35.45 gigabytes, how big is th
    10·1 answer
  • Which scatterplot shows the correct division for using the Area Method to draw the trend line?
    5·2 answers
  • I need helpppppppppppop
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!