Relatable Integers

We know that 89=8+92. 89 = 8 + 9^2. Including 89 shown above, how many 2-digit integer(s) satisfy the equation ab=a+b2? \overline{ab} = a + b^2 ?

Clarification:
For example, if a=7a=7 and b=4,b=4, then ab=74.\overline{ab} = 74.

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