Question

The sum of the zeroes of the polynomial 2x²
-8x +6 is
(a) - 3 (b) 3 (c) - 4 (d) 4

Answer 1

Answer:

(d)4

Step-by-step explanation:

The polynomial 2x^2-8x+6=0.

we know that,

for a polynomial ax^2+bx+c , the sum of it's zeroes is equal to -b/a

Therefore sum of zeroes of above polynomial is -(-8)/2=8/2=4.

Therefore the answer is 4

Answer 2

d) is the correct option i.e. the sum of zeroes of the given polynomial is 4

Step-by-step explanation:

Given: Polynomial  $2x^2-8x+6$

To find : Sum of zeroes

Now as we know if ax²+bx+c is a polynomial then the sum of zeroes is given by

$\alpha + \beta= \dfrac{-b}{a}$

where α  and β are the zeroes of the polynomial

Now comparing the polynomial we get

a= 2 , b= -8 , c = 6

Then

$\alpha +\beta = \dfrac{-(-8)}{2} = 4$

Hence, the sum of zeroes of the given polynomial is 4

#Learn more

Find the sum of zeroes of polynomial 3x²-7

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