Question

Please answer this I need help in this question

Answer 1

I am answering second question. Let alpha and beta be the zeroes of the quadratic expression . tgerefore alpha =root 2 and beta =-root 2 so alpha +beta=0 and alpha× beta = -2 any quadratic equatin ha s the following form x^2 - ( alpha +beta )x +(alpha ×beta) =0 by putting the values u can get the answer