Learn Class 10 Math - Polynomials

The polynomials are the complete set of rational numbers exponents. They are algebraic expressions. Whereas in the polynomial, the variable exponent is the whole number.

Example of a polynomial:

  • 2x + 2x + 3.
  • 4x+3√x is not a polynomial because the 1/2 exponent of x is not a set of whole numbers.

Polynomial types:

Generally, there are three types of polynomials. These are given below:

  • Monomial:

    Monomials are the terms that only consist of one term, i.e., 3x, 5x, etc.

  • Binomial:

    Binomials are the terms that consist of two terms, i.e., 4x + 3, 5x + 5.

  • Trinomial:

    Trinomials consist of more than two terms, i.e., x2+3x+4.

Degree of a polynomial:

The polynomial degree is the highest power that is present in the equation.

Zero of a polynomial:

  • When the value of the equation results in a zero, it is known as the zero of a polynomial.
  • Like p(x) at x = 0, then p(x) = 0 and that is known as the zero of the polynomial.

Polynomial zero algorithms:

  • In the division algorithm of polynomials, two polynomials are given.
  • Like p(y) and g(y) are the two polynomials in which g(y) is not equal to zero.
  • Then it can be found with p(y) = g(y). q(y). r(y), in which r(y) = 0.

Learning Videos for 10th Grade Math - Polynomials

Polynomials Sample Questions for Class 10

Question 1

Given the function f(x) = 3x^2 + 10x -8, what is its domain?
A. { x in RR | -4 <= x <= 2/3}
B. RR
C. {x in RR | x > -8}
D. {x in RR | x > 0}

Question 2

What is the range of the function g(x) = -4x - 2/3 ?
A. RR
B. {y in RR | y > -2/3}
C. {y in RR | y > -1/6}
D. {y in RR | -4 < y < 2/3}

Question 3

Select the polynomial that is written in standard form.
A. 3x^2+4x^5-7x
B. 4x^5+3x^2-7x
C. -7x+4x^5+3x^2
D. 7+4x^5-3x^4+2x^3

Question 4

The graph below shows a function.
A. True
B. False

Question 5

What are possible function rules for f(x) and g(x), if (g@f)(x) = 9x^2 - 15x -13 ? There may be more than one correct answer.
A. f(x) = x-2, \ \ g(x) = 9x^2+21x-7
B. f(x) = 3x+2, \ \ g(x) = x^2 - 9x + 1
C. f(x) = 3x^2 -5x - 5, \ \ g(x) = 3x-2
D. f(x) = 3x^2 - 5x - 13, \ \ g(x) = 3x