Question

solve ax^2+bx+c=0 when x=1,2
Find a and b
Class 10-quadratic equation

Answer 1

Answer:

$roots = 1 \: and \: 2 \\ \\ equation \: \: by \: \: roots \: = > (x - 1)(x - 2) = 0 \\ \\ {x}^{2} - 3x + 2 = 0 \\ \\ compare \: \: with \: \: a {x}^{2} + bx + c = 0 \\ \\ = > \: a = 1 \\ \\ = > \: b = - 3 \\ \\ = > c = 2$

Answer 2

Answer:

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Step-by-step explanation:

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