His explanation is not good enough. First, he did not explain why the second number is 4x. The second number could have been 4+x or x^4. And why is x + 4x equal to 5x? Why not 4x^2?And the last part! If 5x = 45, shouldn't x be 40? Why divide by 5 for both sides? Why not minus 5 on both sides? Bad teacher!!!!
The explanation is clear enough, but I feel the style is a bit dull. This results in some students not paying attention, and not getting what should be a simple point.
I somehow prefer having a guy teach me than a female...since alot of times i found myself throwing papers at the teachers..but male teachers seem to take it more serious..so i pay more attention.
i still dont get how your second number is 36. I do understand that 45 - 9 is 36 but when you plug that into 4x wouldn't that mean 4 x 36 which equals 144
You need to watch again, but this time pay attention. He didn't say "4x36". He DID say "the SUM of x and 4x (x+4x)". x=9, and so 4x=36, therefore, x+4x=45.
stupid problem o.O
TheLasseCarlsen 10 months ago
Are you guys honestly complaining about his explanation? You can do this shit in your head!
horsecrap666 1 year ago
He Looks quite sad and not interested.
Akshi29 1 year ago
@Akshi29
Obviously not ^^ It's a fuckin boring problem to explain... I'd be sad, too, if I had studied mathematics and had to write such a bull on a board.
iPhanthom 1 year ago
Senence... o_o;
Onitoga 1 year ago
His explanation is not good enough. First, he did not explain why the second number is 4x. The second number could have been 4+x or x^4. And why is x + 4x equal to 5x? Why not 4x^2?And the last part! If 5x = 45, shouldn't x be 40? Why divide by 5 for both sides? Why not minus 5 on both sides? Bad teacher!!!!
HoSayLiaoLah 2 years ago
@HoSayLiaoLah you sir, need to retake algebra 1 :)
rastaboard9 1 year ago
@rastaboard9
His final answer is x = 9. Then the 2nd number 4x should be 49, right? Why 36? 9 + 49 = 58, not 45. This teacher simply did not make sense to me!!!
HoSayLiaoLah 1 year ago
@HoSayLiaoLah Its is 4 x 9 not 49. So he is right. In algebra form it stands for 4(9)= 36
Akshi29 1 year ago
@HoSayLiaoLah kk, in which grade are you?... it seems that you didn't take the variables yet...
if x=3 and il say, 2x, that means 2*x means 2*3 = 6
or 2x = x+x=3+3=6.. :)
DrKillaser 1 year ago
@HoSayLiaoLah I can't belive!!!!!
TheOnija 11 months ago
The explanation is clear enough, but I feel the style is a bit dull. This results in some students not paying attention, and not getting what should be a simple point.
whoisJohnGalt3 3 years ago
I somehow prefer having a guy teach me than a female...since alot of times i found myself throwing papers at the teachers..but male teachers seem to take it more serious..so i pay more attention.
magusfeo915 2 years ago
Yeah, but if the teacher is female & hot, I would pay more attention, but probably not to what's on the chalkboard!
whoisJohnGalt3 2 years ago
dude, which lessons in class that you feel good.
can say almost all lessons and subjects are boring yet we forced ourself to study to get good marks..
School = Primary & Secondary Prison
Galaxino 3 years ago
Hey it helps lol if only I was doing math prblm.s like that
Luv7wana17 3 years ago
i still dont get how your second number is 36. I do understand that 45 - 9 is 36 but when you plug that into 4x wouldn't that mean 4 x 36 which equals 144
guitardude660 3 years ago
You need to watch again, but this time pay attention. He didn't say "4x36". He DID say "the SUM of x and 4x (x+4x)". x=9, and so 4x=36, therefore, x+4x=45.
whoisJohnGalt3 3 years ago
Honestly I agree with the comment below. It was pretty boring. haha. But it does provide sufficient information!
swtxwishes 3 years ago
This is really boring. But i learned something!
prtyoverhere 3 years ago