Ncert solutions for class 9 maths chapter 2 polynomials exercise 2.4
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Classify the following as linear, quadratic and cubic polynomials. Therefore, this expression is not a polynomial. These are ± 1, ± 2. The chapter starts with the introduction of Polynomials in section 2. Any alphabet used in the expression is the variable unless specified as constant.

Video Solution Answer: Degree of a polynomial is the highest power of the variable in the polynomial. Video Solution Answer: Linear polynomial, quadratic polynomial, and cubic polynomial has its degrees as 1, 2, and 3 respectively. Therefore, it is not a polynomial in one variable. Page No: 40 Exercises 2. The solutions given for the questions asked related to these topics will help the students to understand the concept better. Let us divide the polynomial by , to get Therefore, we can conclude that on factorizing the polynomial , we get.

However, is not a zero of the given polynomial. This problem can also be solved using long division. Let us divide the polynomial by , to get Therefore, we can conclude that on factorizing the polynomial , we get. Therefore, the degree of this polynomial is 2. B Every integer is a rational number. These solutions for Polynomials are extremely popular among Class 9 students for Math Polynomials Solutions come handy for quickly completing your homework and preparing for exams. These are ±1, ± 5.

Therefore, this expression is not a polynomial. The summary given in this chapter are mentioned in a limpid manner to help the student to not only understand their concept but also apply them wherever required. Let us find the quotient on dividing x 3 + 13 x 2 + 32 x + 20 by x + 1. Therefore, degree of polynomial is 1. What are the possible expressions for the dimensions of the cuboids whose volumes are given below? Concept Insight: Given Polynomial is p x to find the value of given polynomial at any particular value of x replace the variable x with its corresponding value.

The degree of the polynomial is less than or equal to the number of real factors the polynomial. Download Apps for class and Free. Here, the students will learn to apply factor theorem to solve various polynomial problems. State reasons for your answer. The step-by step solutions provided for this chapter will help the learners to understand these concepts and their applications.

Go back to to see other exercises. D Every real number is an irrational number. So, the degree of the polynomial is 2. Page No: 43 Exercise 2. Also check for calculation errors; there are chances of making calculation mistake while computing square, cubes and higher powers of numbers.

Let us substitute 1 in the polynomial , to get Thus, according to factor theorem, we can conclude that is a factor of the polynomial. So, it is not a polynomial in one variable. So, one quadratic polynomial which fits the given conditions is. Chapter 2 in Grade 9 Maths is Polynomials. The solutions for these topics have been explained with the help of guided and step by step information so that the learner can get a clear perspective about the key ideas.

These are ±1, ± 5. Give possible expressions for the length and breadth of each of the following rectangles, in which their areas are given: i Area : 25a 2 — 35a + 12 ii Area : 35 y 2 + 13 y — 12 Answer i Area : 25a 2 — 35a + 12 Since, area is product of length and breadth therefore by factorizing the given area, we can know the length and breadth of rectangle. Check whether 7 + 3x is a factor of 3x 3+7x. So, The zeroes of Therefore , sum of the zeroes and, product of the zeroes Q. Therefore, it is not a polynomial in one variable.