Question

Q. If a and ß are the roots of equation x2 - 5x + 6 =
O, then find the value of a - B.
​

Answer 1

A - B
Square it
= A^2 + B^2 - 2AB
= ( A + B ) ^2 - 4 AB
= ( -b/a )^2 - 4 (c/a )
=( 5) ^2 - 4 ( 6)
= 25 - 24
= 1
Square root again
= 1