Question

Q 21 exercise 2.1 rd sharma class 10 please a for alpha and beta are the zeros of the quadratic polynomial FX equal to X square + bx + c then evaluate Alpha minus beta ​

Answer 1

Answer:

see, u take out value of alpha +beta and alpha × beta,then (alpha- beta) square = alpha square + beta square- 2×alpha×beta in thus identity put value of alpha^2 +beta^2= (alpha + beta)^2 -2 alpha×beta then u will get rhe vale don't forget to remove the whole square and put root pls give me 5 stars i did tried to explain hard