Question

EXERCISE 2.1 1. Which of the following expressions are polynomials in one variable and which we nat? State reasons for your answ
$4x { }^{2} - 3x + 7$
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Answer 1

Step-by-step explanation:

Ex 2.1, 1

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

(i) 4x² 3x + 7

4x² - 3x + 7 = 4x² 3x¹ + 7x⁰ -

Whole number:

Numbers starting from 0 0, 1, 2, 3, 4, 5, 6,....

Here power of equation is 2,1 and 0. Since all powers are whole number, it is a polynomial

Now since there is only one variable x,

it is polynomial in one variable

Yes, this expression is a polynomial in one variable x.