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sabika13
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find the equation whose roots are each two more than the roots of x^3  4x^2 + 3x  2 = 0 ?
 2 years ago
 2 years ago
sabika13 Group Title
find the equation whose roots are each two more than the roots of x^3  4x^2 + 3x  2 = 0 ?
 2 years ago
 2 years ago

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shubhamsrg Group TitleBest ResponseYou've already chosen the best response.0
let roots be a,b,c now a+b+c=4 ab + bc + ca = 3 abc = 2 the new eqn has roots, a+2,b+2,c+2.. make those substitutions let the new eqn be x^3 + px^2 + qx + r =0 you know, (a+2) + (b+2) + (c+2) = p (a+2)(b+2) + (b+2)(c+2) + (c+2)(a+2)= q (a+2)(b+2)(c+2) = r make those comparisons..
 2 years ago

sabika13 Group TitleBest ResponseYou've already chosen the best response.0
why does a+b+c equal 4?
 2 years ago

shubhamsrg Group TitleBest ResponseYou've already chosen the best response.0
sum of roots = b/a ..rightt ?
 2 years ago
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