Polynomials Class 10

Polynomials : Important Questions and Formulas on Polynomials for Class 10 are discussed! Your concepts on Polynomials will become super clear!

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[vanshikashukla]

All the best to all my 10th mates for tomorrow

[clownop]

Good teaching.. When I search all the other videos are in hindi.. You're the one who explains in English.. 👍✌️Thank you...

[rajeshrajesht]

Product of polinomial= 4
Alfa×beta=4
c/a=4. (C=-6, a=a)
-6/a=4.
a=-6/4
a=-3/2

[ananyaedla]

2nd question ans:
by subtracting equations 1 ans 2 we get:
4\9a + b = -14\3 taking lcm of 4\9 and 9 we get 9and subtracting them we get 77\9
9a + b= 21 b will get canceled and taking lcm of 14\3 and 21 we get lcm as 3 and by subtracting these we get
(-) 77\3

77\9a = 77\3

a=77\9 x 3\77
a=3

sub 3 in equation
a(9)-21=b=0
3(9)-21+b=0
27-21=-b
b=-6

to understand better write this ans in a paper and look over it

[rameshb]

Sir, in the question "If x = 2/3, x = -3 are roots of ax² + 7x + b = 0, find a and b"
We can use another method right
Alpha + beta = -b/a and alpha × beta = c/a
We get 2/3 + (-3) = -7/3
a = 3
2/3 × (-3) = -6/3
b = -6
I think this is more easy method

[mohammedzaamil]

this is perfect for learning during quarantine..

[_kozmo_]

10:58 There is no need to do the complex solution done in the video
Much better, simpler and faster way to solve the problem- If x = 2/3, x= -3 are roots of ax²+7x+b=0, find a & b.
Alpha + beta = -b/a
2/3 + (-3) = -7/a (for this polynomial)
2/3 - 3 = -7/a
Taking LCM,
2-9/3 = -7/a
-7/3 = -7/a
Therefore, a = 3

Alpha × Beta = c/a
2/3 × (-3) = b/a (for this polynomial)
-6/3 = b/3 (since a = 3)
Therefore, b = -6
You don't have to solve a pair of linear equations in two variables for this simple problem.

[findingtruth]

Question:- If the product of the zeroes of the polynomial (ax^2-6x-6) is 4, find the value of a.
Solution:-
As per the given equation (ax^2-6x-6), Alpha×Beta( product of zeroes)=c/a. c=-6, a=a.
given:-c/a=4.
So, 4=-6/a
=>a= -3/2 or -1.5.
Therefore, a= -3/2 or -1.5.

[guitarista]

Given polynomial:

Product of zeroes of this polynomial = 4.

A polynomial is an expression of more than one or two algebraic term, may be a sum of those terms also.

We know, that the product of zeroes of a polynomial can be given by =c/a

Hence, for the polynomial:, a = a, b = -6 and c = -6.

Product of zeroes of this polynomial = (-6)/a

4 = -6/a

a = -6/4= -3/2

sir is this the answer

[-B-Bhanupoojitha]

love this HE USES ONLY ENGLISH WHILE SPEAKING....explanation is superb

[ECHaOtic]

(Using the relation : alpha*beta = c/a)
-6/a=4
4a=-6
A=-6/4
So the answer is -3/2

[ajithjohn.c]

to be honest there is no need of tution if ur there. i really love they way u teach. my mom is really happy that u have given all student free classes. may god bless u . thank u sir

[sureshkumarmaddineni]

Sir u can short form the sum at 10:50 u can use the formula alpha + beta = -b/a then u get 2/3 + (-3)= -b/a=-7/a
Then do the calculations u get =
A=3
Then to find b we use formula alpha×beta= -c/a

[abhinavvvv_]

sir your way of teaching is superb and way you speak english

[vidishareddyvuppula]

Why isn't anybody talking about how cool his board and his pen or marker or chalk whatever it is...I am so damn curious about it...

[yuvraj]

11:52 sir I have another method for this
We know that
āb=c/a and here c=b and a=a
So if we do product of zeroes we can easily get our answer

[sanvi]

I don't know why people don't subscribe such a good channel

[yaduharikrishnan]

literally everyone is watching a few days before exams
he posted the video on 9th march 2020 and the comments are all less that 10 days old lmao

[satyveer]

I like his method as well as communication.