Please send answer please – InterviewSolution

1.

Please send answer please

Answer»

$\alpha , \beta$

are the ROOTS of the equation

${x}^{2} + 7x + 10$

here a=1

b=7

c=10

$\alpha + \beta = ?$

we KNOW that

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

$\alpha + \beta = \frac{ - 7}{1} \\ \alpha + \beta = - 7$

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