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If a and b are zeros of (x)²+5x+8,then the value of (a+b) is?

Posted by Shashi Prakash Singh 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 6 months ago

Since we have given that

{tex}x^2+5x+8{/tex}

Let α and β are the zeroes of the above quadratic equation.

As we know the relation between zeroes and the coefficients of quadratic equation in the form of ax²+bx+c=0.

{tex}\alpha +\beta =\frac{-b}{a}=\frac{-5}{1}=-5{/tex}

Hence, the value of α+β is -5.

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CBSE > Class 10 > Mathematics