Question

Simplify.................

With full method
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Answer 1

Answer:

1) a^4 +b^4 - 2a² b²

>>We know that (a-b)² = a² +b² -2ab

So, (a²-b²)² = a^4 +b^4 - 2a² b²

2) (ab)² +(bc)²

>>We know that (a+b)² = a² +b² +2ab

So, (ab+bc)² - 2ab²c = (ab)² + (bc)² + 2ab²c -2ab²c = (ab)² + (bc)²

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