Question

what is the sum of zeros of quadaretic polynomial x2+7x+10​

Answer 1

$\star\:\:\bf\large\underline\blue{Question:-}$

• Find the zeros of the equation ${x}^{2} + 7x + 10 = 0$

$\star\:\:\bf\large\underline\blue{Solution:-}$

${x}^{2} + 7x + 10 = 0$

$\implies {x}^{2} + 5x + 2x + 10 = 0$

$\implies x(x + 5) + 2(x + 5) = 0$

$\implies (x + 2)(x + 5) = 0$

Therefore, either $x + 2 = 0$or, $x + 5= 0$

So,

$x = - 2$

And,

$x = - 5$

$\star\:\:\bf\large\underline\blue{Answer:-}$

• The roots of the equation are -2 and -5