Question

a+b=5 and ab=6 then find the value of a3-b3=

Answer 1

Answer:

3 is a > b and -3 if a < b

Step-by-step explanation:

a+b =5 and ab=6 given

quadratic equation

x^2 -(a+b)x+(ab)=0

x^2-5x+6=0

by doing factorization we get,

(x-3)(x-2)=0

x=3 ,x=2

substitute in the values of a and b