Question

Kindly give the correct answer.

Answer 1

Hi didi!

Here is yr answer.....

Given,

product of zeros = -81

one of the zeros α = 3

The other zero = β

Now,

αβ= -81

3 × β = -81

β= -81/3

β = -27

Sum of the zeros = α+β

= 3 + (-27)

= 3-27

= -24

So,

αβ = -81

α+β = -24

Let's apply formula of quad. polynomial

=> k [ x² - (α+β)x + αβ ]

=> k [x² -(-24)x + (-81) ]

=> k [ x² + 24x - 81 ]

let us suppose k = 1

=> 1 (x² + 24x - 81)

=> x² + 24x - 81

Therefore,

Option (a) is correct!

Hope it helps u didi...

#BeBrainly

Answer 2

Heya!

yr answer is here....


Given,

one of the zeros a = 3

other zero = b

ab = -81

3b = -81

b = -81/3

b = -27


a+b = 3 -27 = -24


quadratic polynomial.... formula

= k [x² -(a+b)x + ab ]

= k [ x² -(-24)x + (-81)]

= k [ x² + 24x -81 ]

let k = 1

= 1 [x²+24x-81]

= x² + 24x - 81

So,

(a) is correct!


I hope my answer helped u!

@sairambandari