Two mark exercise problem I — task. Mathematics State Board, Class 10.

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Answer variants:

${3 x}^{2} - 5 x + 12 = 0$

$x^{2} + {(2 - a)}^{2} x + {(a + 5)}^{2} = 0$

$x^{2} + 9 x + 20 = 0$

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

Determine the quadratic equations, whose sum and product of roots are

(i)

$-9$ ,

$20 =$

(ii)

$\frac{5}{3}$ ,

$4 =$

(iii)

$\frac{-3}{2}$ ,

$-1 =$

(iv)

$-(2 - a)^2$ ,

$(a + 5)^2 =$

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