if alpha and beta are the zero of the polynomial 3x2 -2x-7,then find the value of alpha upon beta +beta upon alpha
Answers
Answered by
0
Answer:
Answer=20
Step-by-step explanation:
3×2-2×-7
6+14
20
Answered by
4
Answer:
Step-by-step explanation:
alfa/beta + beta/alfa
= (alfa^2 + beta^2 )/alfa beta
=[ (alfa + beta)^2 -2alfa beta]/alfa beta
Given polynomial = 3x^2 - 2x ,-7
a =3, b =-2, c=-7
Sum of zeroes = alfa +beta =-b/a =2/3
Product of zeroes = alfa × beta =c/a =-7/3
Substituting these values in the expression that we got above
[(2/3)^2 - 2 × (-7/3)]/(-7/3)
=(4/9 +14/3)/-7/3
=46/9 × 3/-7
=46/3 × -1/7
=-46/51
Similar questions