Question

solutions of 7(a²+b²)² -15(a⁴-b⁴) +8(a²-b²)²​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

-2a²b²

Step-by-step explanation:

7(a²+b²)² -15(a⁴-b⁴) +8(a²-b²)²

7(a4+b4+2a²b²-15(a4-b4)+8(a4+b4-2a²b²)

=7a4+7b4+14a²b²-15a4-15b4+8a4+8b4-16a²b²

=14a²b²-16a²b²

= -2a²b²

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