Question

If alpha,beta are zeroes of the polynomial2x²-8x+10 then,alpha²+beta²=

Answer 1

Answer:albha + beta =-b/a and Alpha ×beta =c/a

Alpha+ beta=-(-8)/12 and alpha× beta =10/12

Alpha+beta =8/12 and alpha ×beta = 5/6

Alpha+ beta = 2/3 and alpha ×beta =5/6

Alpha square + beta square =( alpha + beta)whole square -2×alpha×beta

=(2/3)square - 2×5/6

After solving u will get -11/9