Quadratic Equation and Inequalities

Section: Mathematics
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Question : 5 of 23
 
Marks: +1, -0
Suppose a, b denote the distinct real roots of the quadratic polynomial x2+20x−2020 and suppose c, d denote the distinct complex roots of the quadratic polynomial x2−20x+2020 . Then the value of
ac(a−c)+ad(a−d) +bc(b−c)+bd(b−d)
is
[JEE Adv 2020 P1]
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