CDS || Maths || Algebra_Quiz_2020

If x³ + y³ = 16 and x + y = 4, then the value of x⁴ + y⁴ is:

If a – b = 2 and a²+ b² = 20, where a and b are positive integers, then a⁴+ b⁷ is equal to

If , then what is  equal to?

If  and a = 2 + b, then the value of a + b is ( given that a > 0 and b > 0)

If , then what is one of the value of  ?

If x + , then what is the value of  x⁵-(1/x⁵)?

If x + = , what is the value of  ?

If , then what is the value of (x + 7)² +  ?