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IF alpha , beta are the roots of ax ^...

IF `alpha , beta ` are the roots of `ax ^2+bx + c=0` and `gamma , delta ` are the roots of `lx ^2 +mx +n =0` then the equation whose roots are ` alpha gamma + beta delta , alpha delta + beta gamma` is

A

`a^2 t^2 x^2 - ablmx +b=0`

B

` a^2 t^2 x^2 - ablmx +(b^2 nl + m^2 ac - 4acnl )=0`

C

`a^3 t^2 x^2 - ablmx`

D

none

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-QUADRATIC EXPRESSIONS-EXERCISE 1A (QUADRATIC EQUATIONS)
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