Question

If a + b = 8 and ab = 15, find the value of a4 + a2b2 + 64.
Hint. a4 + a2b2 + b4 = (a2 +b2)2 - a2b2.
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Answer 1

Answer:

931

Step-by-step explanation:

Answer 2

Answer:

931

Step-by-step explanation:

a4 + a2b2 + b4

= (a²)²+2a²b²+(b²)²-a²b²