Question

If a+b =8 & ab = 15, find : a^2 + a^4b^4 + b^2​

Answer 1

$a + b = 8 \\ ab = 15 \\ find \: - {a}^{2} + {a}^{4} + {b}^{4} + {b}^{2}$

Is that is your question ??