Q3 of 82 Page 121

Let us check the following statements—

The zero of the polynomial P(x) = 3 – x is 3.

Formula used/Theory.


There is some value of ‘x’ for which the P(x) comes to 0, that value of ‘x’ is said to be zero of polynomial P(x)


We have,


P(x) = 3 – x


And zero of the polynomial P(x) is 3


Then,


Zero of the polynomial P(x)


Means P(x) = 0


3 – x = 0


-x = -3


x = 3


∴ Zero of polynomial P(x) is 3


Conclusion.


Hence, the statement is True


More from this chapter

All 82 →
2

By calculating the following polynomials f(x) let us write the values of f(1) and f(–1):

f(x) = 6 + 10x – 7x2

 3

Let us check the following statements—

The zero of the polynomial P(x) = x – 1 is 1.

 3

Let us check the following statements—

The zero of the polynomial P(x) = 5x + 1 is

3

Let us check the following statements—

The two zeros of the polynomial P(x) = x2 – 9 are 3 and –3.