Math, asked by hrithik13, 1 year ago

if alpha and beta are zeros of polynomial 2 x square - 4 x + 5 find the value of a square + b square

Answers

Answered by Light1729
2
We know,
a + b =  -  \frac{ - 4}{2}  = 2 \\ ab = \frac{5}{2}  \\ (a + b)^{2}  = 4 \\  {a}^{2}  +  {b}^{2}  + 2ab = 4
Put,
ab =  \frac{5}{2}
To get, a²+b².
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