quadratic

if x=1 is a real root of
ax²+bx+c=0
then show that
4ax² +3bx +2c =0 has real roots

1 Answers

from eq 1
b²-4ac â‰¥0
for eq 2 to have real roots,
9b²-32ac â‰¥0
,,,,,but from eq 1 9b²â‰¥36 ac
.....thus eqn 2 has real roots !

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