NCERT Class 9 Mathematics
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CHAPTER 2 POLYNOMIALS 2.1 Introduction You have studied algebraic expressions, their addition, subtraction, multiplication and d ...
POLYNOMIALS 29 Now, consider a square of side 3 units (see Fig. 2.1). What is its perimeter? You know that the perimeter of a sq ...
30 MATHEMATICS If the variable in a polynomial is x, we may denote the polynomial by p(x), or q(x), or r(x), etc. So, for exampl ...
POLYNOMIALS 31 Now observe the polynomials p(x) = 4x + 5, q(y) = 2y, r(t) = t + 2 and s(u) = 3 – u. Do you see anything common a ...
32 MATHEMATICS EXERCISE 2.1 Which of the following expressions are polynomials in one variable and which are not? State reasons ...
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