Question

how to solve this step by step​

Answer 1

Answer:

(A) x square- 3x + 2

Step-by-step explanation:

hope this helps

Answer 2

Answer:

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

Step-by-step explanation:

We know that in Quadratic equation

$a {x}^{2} + bx + c = 0$

if

$\alpha\:and\: \beta$

are the roots,then

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

For option A)

${x}^{2} - 3x + 2 = 0 \\ \\ a = 1 \\ \\ b = - 3 \\ \\ c = 2 \\ \\ sum \: of \: roots \\ \\ \alpha + \beta = \frac{ - b}{a} \\ \\ = \frac{ - ( - 3)}{1} \\ \\ \alpha + \beta = 3$

So,option A is the correct answer.

Hope it helps you.