If α and β are the zeros of x2 + 5x + 8 then the value of (α + β) is

Since, α and β are the zeroes of polynomialx2 + 5x + 8And we know that,x2 – (α + β) + αβ is the polynomial with α and β as its zerosThus, (α + β) = -5Hence, option B is correct.

Q. 124.0( 5 Votes )

If α and β are the zeros of x² + 5x + 8 then the value of (α + β) is
A. 5

B. ‒5

C. 8

D. ‒8

Class 10th RS Aggarwal - Mathematics 2. Polynomials

Answer :

Since, α and β are the zeroes of polynomialx² + 5x + 8

And we know that,

x² – (α + β) + αβ is the polynomial with α and β as its zeros

Thus, (α + β) = -5

Hence, option B is correct.

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If α and β are the zeros of x2 + 5x + 8 then the value of (α + β) is A. 5B. ‒5C. 8D. ‒8

If α and β are the zeros of x² + 5x + 8 then the value of (α + β) is
A. 5

B. ‒5

C. 8

D. ‒8