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
olga2289 [7]
3 years ago
7

Solve the quadratic equation below x2-64=0

Mathematics
2 answers:
erica [24]3 years ago
7 0

x2-64=64

factorise with difference of two squares

(x-8)(X+8)=0

if you open the bracket you will have

X2+8x-8x-64=0

8x-8x is 0

X2+0-64

x2-64=0

Montano1993 [528]3 years ago
4 0

Answer:

x=32

Step-by-step explanation:

first, you add 64 to both sides and you have:    x2=64

second, you divide 2 on both sides to get x by itself, so 64 divided by 2 is 32

You might be interested in
Could someone help me on my assignment?
Degger [83]
First box (under 1) is 7, next box (above 12.5) is 6.5 and the last box is 16
8 0
2 years ago
Read 2 more answers
Plzz complete #’s 1, 3, 5, 7, and 9 first person with all correct answers will get brainliest
Anarel [89]

try using the app Photomath for numbers 1-3!

6 0
3 years ago
Which expression represents the sum (3z−11)+(6−6z) ?
Fudgin [204]

Answer: z = -5/-3

Step-by-step explanation:

(3z−11)+(6−6z)

3z - 11 + 6 - 6z

- 6z + 3z - 11 + 6

- 3z - 5

z = -5/-3

6 0
3 years ago
Whats 8 5/7 plus 5 13/14 ASAP
lozanna [386]
14.6428 in decimal , in fraction 14 16/25
7 0
3 years ago
Can some please help with this? :)
den301095 [7]

Answer:

Step-by-step explanation:

The stuff that is yellow is the answer!

6 0
3 years ago
Other questions:
  • When looking at a quadratic function on a graph, whether it is down or up, the domain will always be all real numbers or does it
    15·1 answer
  • 2/3 to 3/2 ratio in simplest form
    6·1 answer
  • 9x-y=5 find the slope
    9·1 answer
  • I need help with these questions​
    9·2 answers
  • We wish to estimate the population mean of a variable that has standard deviation 70.5. We want to estimate it with an error no
    15·1 answer
  • Rick wishes to purchase a new car and can afford monthly payments of up to $275
    14·1 answer
  • Are the following two expressions equivalent? 7+7x ; 7 (x+ 1/7 )
    8·1 answer
  • A sports marketing company is interested in how many hours teenagers in a town spend watching sports. They randomly select 40 te
    15·1 answer
  • To graduate you must take at least 12 core credits and 6 electives credits and you can take no more than a total of 26 credits.
    11·2 answers
  • Solve.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!