Square roots

[main folio]

Square roots

[brisk quartz]

first make both sides into a square root

[cedar coral]

Mb didn’t mean to delete pic

[brisk quartz]

alr

[cedar coral]

Ok

[brisk quartz]

sorry

ignore that i read the qustion wrong

first simplify the fraction

so it becomes 25

[cedar coral]

Here is the question

[cedar coral]

ok

[brisk quartz]

and then square root the answer

or write it in a square root form

so its + or - √25

and since its asking for the negative square root it would be -5

[cedar coral]

ok

[brisk quartz]

do you understand?

[cedar coral]

yeah thx

[brisk quartz]

what grade are you in btw?

[cedar coral]

7th

[brisk quartz]

oh alr

[cedar coral]

i got a good score on some diagnostic so i got put in algebra 1

[brisk quartz]

i wouldnt understand what algebra 1 in cuz im from the uk

but it sounds good

so nice

[cedar coral]

Yeah i dont understand it either

but thx for the help

[lone shoal]

No. Real numbers cannot have a negative number in the square root, so this question is solved using complex numbers. The answer is found as 5i.

[cedar coral]

.close

[main folio]

Solved

Post marked as solved by @cedar coral.

Use .unsolved if this was a mistake.

[brisk quartz]

np

[lone shoal]

the answer is not -5. it must be 5i.

[brisk quartz]

thats not what the question is aksing

asking

[cedar coral]

when i entered it, it was correct

[brisk quartz]

.

the question asked for the negative value of sqrt(100/4)

[lone shoal]

Square root numbers have no negative root in real numbers. it exists in complex numbers

[cedar coral]

it’s algebra 1 everything is complex

[lone shoal]

https://youtu.be/ysVcAYo7UPI?si=eoJNgU6eqP2lb_zh

[brisk quartz]

wait till u get to calculus 2

[brisk quartz]

sure but thats not what the questions asking

[cedar coral]

the question is asking for the square root of 100/4

[cedar coral]

which is 5 or -5 depending on if the question calls for the negative or positive square root

[lone shoal]

Is the negative square root not being asked? In real numbers, the inside of the Square Root cannot be negative.

[cedar coral]

its 8th grade algebra im in 7th grade i barely understand it

[brisk quartz]

perhaps the question was understood incorrectly but also theyre not gonna refer to imaginary numbers in the 8th grade

[lone shoal]

I'm so sorry. I solved the question with high school mathematics. I'm sorry for taking up your time

[cedar coral]

lol, it’s ok my brother does the same thing

[lone shoal]

😄

[cedar coral]

.coose