1.

X² + 4abx – (a² – b²)²​

Answer»

Step-by-step EXPLANATION:

x²+4ABX - (a² - b²)²

= x² + 4abx - [(a²)²- 2(a²b²) + (b²)²]

= x² + 4abx - [ a^4 - 2a²b² + b^4]

= x² + 4abx - a^4 + 2a²b² - b^4



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