Question

b. If x² +1=5 find x² + 1÷x2
​

Answer 1

Answer:

If x² +1=5 find x² + 1÷x2

=5÷x2

=x=2×5

=x=10.(answer)

Answer 2

Answer:

4.25

Step-by-step explanation:

  x²+1=5

∴x²=5-1

    = 4

∴x=√4

   =2

Now, we need to find x²+1÷x².

∴ x²+1÷x²=2²+1÷2²

               = 4+1÷4

               = 4.25