Question

if alpha and beta are the zeros of quadratic polynomial x square - 3 x + 5 then value of alpha + beta

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Given:-

alpha and beta are the zeros of quadratic polynomial x square - 3 x + 5

To find:-

Find the value of alpha + beta

Solution:-

Given quadratic polynomial=x^2-3x+5

On comparing with the standard quadratic pilynomial then we have,

a=1

b=-3

c=5

If α,β are the zeroes of the given quadratic polynomial then

we know that

Sum of the zeroes =α + β = - b/a

α + β = -(-3)/1

α + β = 3

Answer:-

Value of α + β = 3 for the given problem

Points to remember:-

ax^2 + bx +c is a quadratic polynomial and α and β are the zeroes then

• Sum of the zeroes = -b/a
• Product of the zeroes = c/a