Class 10 Maths Chapter 2 – Polynomials

 Class 10 Maths Chapter 2 – PolynomialsExercise 2.1 Page: 281. The graphs of y = p(x) are given in Fig. 2.10 below, for some polynomials p(x). Find the number of zeroes of p(x), in each case.Solutions:Graphical method to find zeroes:-Total number of zeroes in any polynomial equation = total number of times the curve intersects x-axis.(i) In the given graph, the number of zeroes of p(x) is 0 because the graph is parallel to x-axis does not cut...

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Maths NCERT class 9 Chapter 2 – Polynomials

 Maths NCERT class 9 Chapter 2 – PolynomialsExercise 2.1 Page: 321. Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.(i) 4x2–3x+7Solution:The equation 4x2–3x+7 can be written as 4x2–3x1+7x0Since x is the only variable in the given equation and the powers of x (i.e., 2, 1 and 0) are whole numbers, we can say that the expression 4x2–3x+7 is a polynomial in one variable.(ii)...

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