Question

if alpha and beta are the two zeros of 5x square - 7 x + 1 find the value of alpha square + beta square

Answer 1

Answer:39/25

Step-by-step explanation:

Alpha=(7+(29)^1/2)/10....(1) and

Beta=(7-(29)^1/2)/10....(2)

On squaring both eq

((7-(29)^1/2)^2+(7+(29)^1/2)^2)/100

(49+29-(14(29)^1/2+49+29+14(29)^1/2)/100

(2×49+2×29)/100

(49+29)/50

(78)/50

39/25