019: If one zero of polynomial 2x2 ...
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019: If one zero of polynomial 2x2 + px + 4 is 2, find the other zero. Also find p.

11th - 12th Class
Maths
Solution
274
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( f(x)=2 x^{2}+p x+4 ) ( p(2)=8+2 p+4=0 ) ( p(x)=-12 Rightarrow p=-6 ) ( therefore quad 2 x^{2}-16 x+4=0 ) ( 2 x^{2}-4 x-2 x+4=0 ) ( (x-2)(2 x-2)=0 ) Other ( 20 x 0=1 ) value of ( p=-6 )
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