Question

9.
% -5 is a lot of the quadratic equation
2x² + P2-15 20 and the greadretic equation
P(x²+2)+k=0 has equal roots , find the value of ko
8 4 i rot of the quadretic equation x² +42-4=
and the quadratic equation x² + px tk zo has egled
lot find the helae of ko
Find the nelle af k for which the quadratic equation
(k+4) x² + (k+1)x+ 1 to Las equal loss.
A girl in twice as old as her sister. Foll
years kence, the product of their ages will
be 160 . Find their present ages.
Jo. please explain​

Answer 1

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Rvgyjn
Rvbjigc
Fb ghr
3578