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x^3+5x^2+px+q=0 and x^3+7x^2+px+r=0 have...

`x^3+5x^2+px+q=0` and `x^3+7x^2+px+r=0` have two roots in common. If their third roots are `gamma_1` and `gamma_2`, respectively, then `|gamma_1+gamma_2|`=

A

12

B

-12

C

2

D

-2

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Knowledge Check

  • x^(3)+5x^(2)+px+q=0 and x^(3)+7x^(2)+px+r=0 have two roos in common. If their third roots are gamma_(1) and gamma_(2) , respectively, then |gamma_(1)-gamma_(2)|=

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    D
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    B
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    C
    35 + p - q
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