Question

If alpha and beta are zeros of P(x)=x^2-2x-7 , then (alpha - beta) equal to...?



please answer this correctly..​

Answer 1

Step-by-step explanation:

by quadratic formula you can get

roots as. 1 +2√2 and 1-2√2

so difference of these is 4√2

quadratic formula is in the image pinned