Question

Let a and b are two numbers such that a2 + b2 = 4, a3 + b3 = 7. If product of a and b is positive integer then a + b can be ​

Answer 1

Answer:

a+b=3

Step-by-step explanation:

a2 +b2=4.........(1)

a3+b3=7...(2)

sibtractong eq. (1) from (2)

we get ,

a+b=3