Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

√x + 14 - 12 = x

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

x is either 2 or -1

OpenStudy (anonymous):

i was gonnea say the same

OpenStudy (anonymous):

too slow!

OpenStudy (anonymous):

hehehehe

OpenStudy (anonymous):

my comp is freazing every once in a wile thats y

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

But 2 or -1 doesn't show :(

OpenStudy (anonymous):

square both sides and then rearrange so it gives x^2-x-2=0 then you factorise to give (x-2)(x+1) hence x is 2 or -1

OpenStudy (anonymous):

how old r u btw

OpenStudy (anonymous):

I'm 10, I'm a mathematical god

OpenStudy (anonymous):

i am 11

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

those aren't options

OpenStudy (anonymous):

cococnutshake do u have facebook

OpenStudy (anonymous):

?

OpenStudy (anonymous):

Thanks for the help!

OpenStudy (anonymous):

your welcom jk

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

Coconutshake, if you square:\[\sqrt{x}+14-12=x\],\[\sqrt{x}+2=x\]wouldnt' you get \[x+4=x^{2}\] Therefore the equation\[x^{2}-x-4=0\]

OpenStudy (anonymous):

ekk that should be \[x^{2}-4x+4=0 \]

OpenStudy (anonymous):

Therefore the answer is 2.

OpenStudy (anonymous):

Therefore your answer is wrong

OpenStudy (anonymous):

x = -10 and x = -13 is the correct answer

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

You're actually all incorrect. |dw:1338055044817:dw|

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

Tyrion:
Pyramid A is a square pyramid with a base side length of 7 inches and a height of 6 inches.

28 minutes ago
4 Replies
0 Medals

JeliseWh05:
What are the main similarities and differences between fascism and communism?

1 hour ago
1 Reply
0 Medals

JeliseWh05:
What are the main similarities and differences between fascism and communism?

2 hours ago
0 Replies
0 Medals

emilybethch:
Identify the layers of the Sun's interior based on the brief descriptions provided.

2 hours ago
1 Reply
0 Medals

emilybethch:
Explain the difference between physical activity and exercise.

3 hours ago
0 Replies
0 Medals

abbyadams:
Which expression demonstrates the use of the commutative property of addition in

11 minutes ago
1 Reply
0 Medals

emilybethch:
Aliza needs to run at a rate faster than 8.8 feet per second in order to exceed her fastest time in a race.

3 hours ago
3 Replies
0 Medals