10 = -10 Of Course Not! 

In high school I had a book to learn math and nothing else, not even a slide rule. Mr H would have helped me a lot. The present generation needs to be grateful for having computers, the internet, and Mr. H

Well you can turn a negative 10 into a positive 10 if you're talking about the absolute value of 10😂

0:05 I predict…there will be a step including division by zero. ::::: 1:44

Thank you Mr. H.tutoring

02:10 -- well.. it depend from the definition of sqrt, what it returns. By some sqrt definitions the mistake will be in A.

C Because The condition of the identity √(ab) = √a • √b is a > 0 or b > 0, that means at least one for the parameters a and b must be a positive number, simply put it is both parameters cannot be negative at the same time.

God speed to the Truthsayers. Keep holding the line on what is right. Liked and commented

I was going to say A. Because a square root of a perfect square can have to possible out comes either 10 or negative ten. The i analysis was good when one take into account the existence of complex numbers. However, because there is a plus minus in front of square root the negative solution has to be discarded because negative 10 is not equal to 10. In the end the starting premise of the problem is wrong because 10 is not equal to negative 10 so why even bother to prove it. What you did prove though with the imaginary unit is the existence of a negative square root -10 for the square root of 100.

Between steps A and B. Sqrt 100 = 10. Principal root. By all that you did, you dragged -10 along for the ride.

There are only certain circumstances where we can say √(xy)=(√x)(√y). For real numbers we need either x or y to be ≥0. Otherwise √(xy)=-(√x)(√y).

Point C is has an error

I think this work only if we are talking about the absolute value of x

I think there is and error at level of c cause when we have multiplication of negative numbers in a square root we first compute the 2 negative numbers

C only because it "felt wrong". Gut instinct

👍👍👍

Step C is wrong. sqrt(a * b) = sqrt(a) * sqrt (b) only if a and b are non-negative. A better question is why?

Point C.

So I do have 10 thousand dollars in my bank account, I don’t know what “debt” they were talking about.

In my head, put negative 1 times 10 equals -10. -1 X 10= -10. That’s simple. Mr. H, am I right?

A is true fine, B is also true C IS where the mistake is. You can't distribute the square root among two terms if both the terms are negative.

Nice one

The answer is actually A & B, not C. You set 10 equal to √100 but that's wrong because the √100 doesn't equal -10 which is the number you were supposed to be substituting for. *So basically, as soon as he made the -100 a square root it was over, cuz he would just have to do what's in the parentheses which takes him back to -100

that looks quite easy but i assume this will help many people

Nice

The correct is C) , because (ab)^½=(a^½)(b^½) just if a>0 and b>0

Now how did I know there were going to be negatives and square roots together here?

Genius

I feel like i seen this before and its about putting an absolute for the square root

C

I've stopped the video and the error is at point C.

is it B?

[(-25)(-4)]^1/2 is not equal to [(-25)^1/2][(-4)^1/2] Peice of cake

Terrance Howard may say otherwise if we ask him

C is the mistake

Nice vid

Can that work 😅😅😅😅

thank u sir....(first). INDIAN 🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳👇👇👇👇👇👇👇👇👇👇👇👇

Why (-) × (-) = +

Im watching whiles im in year 9 not knowing a thing

😮

A

You forgot the factorial lol

B

E

D

f

Their must be some fault ... Otherwise whole maths will doom .. Shudcavoid these kinds of trivia

I know I'm being super dumb here going against Mr. H, but I thought "F-G" was the mistake. Doesn't any number (i^2 in this case) to the power of 2 become positive? I'd appreciate it if someone could explain that to me. Thank you.

100^1/2 is also +/-10, not just +10. As we are not only counting the radical

C

B

C

C

C

C