Question

Sum of the roots of 2x2 + 3x + 5 = 0 is​

Answer 1

Answer:

$2 {x}^{2} + 3x + 5 = 0$

$2 {x}^{2} - 2x + 5x + 5 = 0$

$2x(x - 1) - 5(x - 1) = 0$

$(2x - 5)(x - 1) = 0$

$x = \frac{5}{2} \: or \: x = 1$

$\frac{5}{2} + 1$

$= \frac{9}{2}$

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