Which of the following is divisible by x 2 - y 2 , ∀ x ≠ y ?

x n - y n x 2 n + 1 + y 2 n + 1 ∀ n ∈ N

x n - y n x m + y m ∀ m , n ∈ N

x 3 27 + x 2 y 15 + xy 2 25 + y 3 125

x 3 27 + x 2 y 25 + xy 2 25 + y 3 125

x 3 25 + x 2 y 15 + xy 2 25 + y 3 125

x 3 27 + xy 15 + xy 2 25 + y 3 125

HARD

Earn 100

Let $a, b, c$ be non-zero real roots of the equation $x^{3} + a x^{2} + b x + c = 0 .$ Then

50% studentsanswered this correctly

Important Questions on Theory of Equation

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

The number of ordered pairs

(x, y)

of integers satisfying

x^{3} + y^{3} = 65

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

Let

P

be a non-zero polynomial such that

P (1 + x) = P (1 - x)

for all real

x

and

P (1) = 0

. Let

m

be the largest integer such that

{(x - 1)}^{m}

divides

P (x)

for all such

P (x)

. Then,

m

equals

EASY

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

x + 2

is a factor of

EASY

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

1 - 64 x^{3} - 12 x + {px}^{2} = {(1 - 4 x)}^{3}

, then the value of

p

is:

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

The number of real roots of the equation,

e^{4 x} + e^{3 x} - 4 e^{2 x} + e^{x} + 1 = 0

is:

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

30 x^{2} - 15 x + 1 = 0

, then what is the value of

25 x^{2} + {(36 x^{2})}^{- 1}

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

Let $f (x) = x^{6} - 2 x^{5} + x^{3} + x^{2} - x - 1$ and $g (x) = x^{4} - x^{3} - x^{2} - 1$ be two polynomials. Let $a, b, c$ and $d$ be the roots of $g (x) = 0$ . Then, the value of

$f (a) + f (b) + f (c) + f (d)$ is

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

a + b + c = 1, a b + b c + c a = 2

and

a b c = 3,

then the value of

a^{4} + b^{4} + c^{4}

is equal to:

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

Which of the following is divisible by

x^{2} - y^{2}, \forall x \neq y ?

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

The number of cubic polynomials

P (x)

satisfying

P (1) = 2, P (2) = 4, P (3) = 6, P (4) = 8

EASY

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

Expand

{(\frac{x}{3} + \frac{y}{5})}^{3}

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

Let

p (x)

be a quadratic polynomial such that

p (0) = 1 .

p (x)

leaves remainder

4

when divided by

x - 1

and it leaves remainder

6

when divided by

x + 1

then:

HARD

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

Let

P (x) = a_{0} + a_{1} x + a_{2} x^{2} + \dots + a_{n} x^{n}

be a polynomial in which

a_{i}

is a non-negative integer for each

i \in \{0, 1, 2, 3, \dots, n\}

. If

P (1) = 4

and

P (5) = 136

, what is the value of

P (3)

EASY

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

The value of

a

for which

a (a + 2) + (a^{2} + 3 a + 2) x + (a^{2} + a - 2) x^{2} = 0

has more than two roots, is:

HARD

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

x = \sqrt{2} + \sqrt{3} + \sqrt{6}

is a root of

x^{4} + a x^{3} + b x^{2} + c x + d = 0

, where

a, b, c, d

are integers, what is the value of

|a + b + c + d|

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

f (x)

is a polynomial of degree

n

with rational coefficients and

1 + 2 i, 2 - \sqrt{3}

and

5

are three roots of

f (x) = 0,

then the least value of

n

EASY

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

Let

f (x)

be a polynomial of degree

3

such that

f (k) = - \frac{2}{k}

for

k = 2, 3, 4, 5 .

Then the value of

52 - 10 f (10)

is equal to _____ .

MEDIUM

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

The number of integers

x

satisfying

- 3 x^{4} + det [\begin{matrix} 1 & x & x^{2} \\ 1 & x^{2} & x^{4} \\ 1 & x^{3} & x^{6} \end{matrix}] = 0

is equal to

HARD

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

If the sum of the coefficients of all even powers of

x

in the product

(1 + x + x^{2} + \dots + x^{2 n}) (1 - x + x^{2} - x^{3} + \dots + x^{2 n})

61,

then

n

is equal to

EASY

Mathematics>Algebra>Theory of Equation>Algebraic Expressions, Equations and Identities

x + \frac{1}{x} = 5

, then

(x^{3} + \frac{1}{x^{3}}) - 5 (x^{2} + \frac{1}{x^{2}}) + (x + \frac{1}{x})

is equal to

Let a, b, c be non-zero real roots of the equation x3+ax2+bx+c=0. Then

Important Questions on Theory of Equation

Learn and Prepare for any exam you want !

Let $a, b, c$ be non-zero real roots of the equation $x^{3} + a x^{2} + b x + c = 0 .$ Then