Ans: ( x+3) (X-4)= -12 Just get factors of -12 . +4 and -3 =-12 and +1x in the centre. Solved it in my head ( ex Maths teacher -retired). Listing the factors of -12 is a good way to star when learning trinomial equations and early Algebra.
Hey, I have a quick question. Doine some market research and wondering if you have you would ever pay for a college algebra course? If so, what would the course have to cover, and how much would you be willing to pay for it?
I generally found the biggest issue with factoring is the lack of basic multiplication tables. Without solid understanding of the basics it effects the more advanced mathematics.
This isn't really a hack, it's just the way a person would do it mentally, without all the writing and going through all the steps. "What two numbers multiply together to get 12 and add or subtract to get 1?" Then you figure out the signs. Though I acknowledge how beginners might need the procedure you showed. The only disadvantage is the time that it takes. That's always a factor on tests.
I'm 73. When I was in high school I was pretty good in basic math but never understood Algebra. I enjoy your course. Thanks
My factoring is improving by the day, thanks to your videos. :)
You are literally carrying me through my maths course right now! Thanks for the great content.
Not literally.
Ans: ( x+3) (X-4)= -12 Just get factors of -12 . +4 and -3 =-12 and +1x in the centre. Solved it in my head ( ex Maths teacher -retired). Listing the factors of -12 is a good way to star when learning trinomial equations and early Algebra.
Great explanations!
C.H.
Thank you sir! Your video is easier to understand
Hey, I have a quick question. Doine some market research and wondering if you have you would ever pay for a college algebra course? If so, what would the course have to cover, and how much would you be willing to pay for it?
Do you have a video on how to teach me to do algebraic expressions
I generally found the biggest issue with factoring is the lack of basic multiplication tables. Without solid understanding of the basics it effects the more advanced mathematics.
You might want to join the lesson about 3 - 4 minutes into the video to see the actual lesson.
Agree. Annoying but he is a typical math guy.
Yes lots of digression and circumlocution... dont think I will sub ... shame because I need to brush these skills.
thank you
How do I do Case 2?
Assuming X sq - X - 12 equals zero, (X + 3)(X - 4) = 0 => X = -3 and X = 4
This isn't really a hack, it's just the way a person would do it mentally, without all the writing and going through all the steps. "What two numbers multiply together to get 12 and add or subtract to get 1?" Then you figure out the signs.
Though I acknowledge how beginners might need the procedure you showed. The only disadvantage is the time that it takes. That's always a factor on tests.
4 and -3
x=4,-3
whats 1984?
Plural s
I did that in my head... -4,+3... duhhh...!!!
19 minutes almost for a "trick" too loblng dude.
I like watching your videos but you are rambling too much. You are loosing attention spans.
Do you have a video on how to teach me to do algebraic expressions