Question

(alpha²-1)(beta²-1) formula​

Answer 1

Answer:

this can be written like this

Step-by-step explanation:

(a^2 - b^2) = (a+b)(a-b)

Answer 2

Answer:

we here have (alpha^2 -1)(beta^2 -1)

so if we use identity of (x-a)(x-b)=x^2-xb-ax-ab

then

=(1)^2 - (1)(beta) - (1)(alpha) - (alpha)(beta)αβ

=1 - β - α - αβ

you can find β - α by root of (β - α)^2