In 3 different times of taking the GED test I've never seen a question like this. Here's why GED is so hard.. my mind jumped to algebra and breaking the question down.. man this is too much
The ac-method is quite nice here. ac=-12 so we are looking for b=-1 or -1x which can be found with -4x PLUS +3x and -4.3 = -12 6x² + 3x - 4x - 2 = 0 -> 3x(2x+1) - 2(2x+1) = 0 -> (3x-2) . (2x+1) = 0 so x1 = 2/3 and x2 = -1/2. To determine IF you can factor this equation the discriminator D should be positive... D = b² - 4ac = (-1)² - 4.6.-2 = 1 + 48 = 49 Discriminator D > 0 so there are 2 values for y = f(x) = 0 and we CAN factor this equation. BUT once you established D = +49 the abc-formula is much easier: D = 49 delta = SQR(D) / 2a = SQR(49) / (2.6) = 7/12 xtop = -b / 2a = -(-1) / 2.6 = 1/12 x1,2 = xtop PLUS/MINUS delta x1 = 1/12 MINUS 7/12 = - 6/12 = - 1/2 x2 = 1/12 PLUS 7/12 = 8/12 = 2/3
That's not cool dude! Everyone learns at their own pace and trust me that GED test is not a walk in the park I passed but had a hard time with math for sure.
@@meno1ms Math can be learned. It's just the language of numbers. The key is to figure out how you learn it. When I was in school and was taught under the old model of algorithmic memorization, I very much struggled. It wouldn't be until many years later that I would figure out why. I don't do math by the of memorization steps. I'm a visual and conceptual math learner that does math, based on logic. Case and point, I would need to be introduced to and understand the Distributive Property (over addition) before being introduced to the standard algorithm for multiplication. You see, the Distributive Property is what multiplication actually is, and the standard is just a shortcut (to save time and paper). All of the standards are shortcuts, actually.
Thanks man that cleared it up quite a bit.
In 3 different times of taking the GED test I've never seen a question like this. Here's why GED is so hard.. my mind jumped to algebra and breaking the question down.. man this is too much
yeah i got the same problem
@@jorgedominguez2256 they ask you to remember so much.. it's insanity
He takes to long to , get to the point!
@@valeriemccroskey6210 jump forward if you want. I appreciate the speed
I like how he explains everything
The ac-method is quite nice here. ac=-12 so we are looking for b=-1 or -1x which can be found with -4x PLUS +3x and -4.3 = -12
6x² + 3x - 4x - 2 = 0 -> 3x(2x+1) - 2(2x+1) = 0 -> (3x-2) . (2x+1) = 0 so x1 = 2/3 and x2 = -1/2.
To determine IF you can factor this equation the discriminator D should be positive... D = b² - 4ac = (-1)² - 4.6.-2 = 1 + 48 = 49
Discriminator D > 0 so there are 2 values for y = f(x) = 0 and we CAN factor this equation.
BUT
once you established D = +49 the abc-formula is much easier:
D = 49
delta = SQR(D) / 2a = SQR(49) / (2.6) = 7/12
xtop = -b / 2a = -(-1) / 2.6 = 1/12
x1,2 = xtop PLUS/MINUS delta
x1 = 1/12 MINUS 7/12 = - 6/12 = - 1/2
x2 = 1/12 PLUS 7/12 = 8/12 = 2/3
You are doing a very great job Sir
I might have to learn completing the square to comprehend these quadratic equations into more detailed terms
this is an exmaple of a sylabus of assignment give to educational goals.
I want to solve algebraic expressions please make a video on it
#QuadraticEquation #trinomial #polynomial #factoring #factor #binomial #linearequation
b^(2) - 4ac = 13
6x^(2) - x - 2 = 0
(2x + 1) (3x - 2) = 0
2x + 1 = 0
2x = -1
x = -0.5
13:29
a = 6
b = -1
c = -2
x1=-1/2 dan x2=2/3
You’re a great teacher but maybe you can shorten your videos a bit. i hate Math as I find it boring and lengthy explanations lose my attention :)
✊
GED WAS EASY NOT SURE HOW PEOPLE FAIL
That's not cool dude! Everyone learns at their own pace and trust me that GED test is not a walk in the park I passed but had a hard time with math for sure.
@@meno1ms Math can be learned. It's just the language of numbers. The key is to figure out how you learn it. When I was in school and was taught under the old model of algorithmic memorization, I very much struggled. It wouldn't be until many years later that I would figure out why. I don't do math by the of memorization steps. I'm a visual and conceptual math learner that does math, based on logic.
Case and point, I would need to be introduced to and understand the Distributive Property (over addition) before being introduced to the standard algorithm for multiplication. You see, the Distributive Property is what multiplication actually is, and the standard is just a shortcut (to save time and paper). All of the standards are shortcuts, actually.