Question

21 The zero of P(x)=2x-7 is: b7/2 C) -2/7 d - 7/2 e other 2/7​

Answer 1

Answer:

7/2

Step-by-step explanation:

Given that,

• p(x) = 2x - 7

Here, we are asked to calculate the zero of the p(x).

Zero of the polynomial is the value at which the value of the polynomial becomes zero.

In order to calculate the zero of the polynomial, we need to solve the equation p(x) = 0.

$\longmapsto$ p(x) = 0

$\longmapsto$ 2x - 7 = 0

$\longmapsto$ 2x = 0 + 7

$\longmapsto$ 2x = 7

$\longmapsto$ x = 7/2

Therefore, the zero of the polynomial is 7/2.

Verification :

As we know that,

Zero of the polynomial is the value at which the value of the polynomial becomes zero. So, p(x) = 0.

Here, p(x) = 2x - 7 and we got the value of x as 7/2.

L.H.S :

$\longmapsto$ 2x - 7

$\longmapsto$ 2(7/2) - 7

$\longmapsto$ 7 - 7

$\longmapsto$ 0

R.H.S :

$\longmapsto$ 0

Hence, verified!