Question

factorize x⁴-225
$x4 - 225$
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Answer 1

Answer:

x⁴ + x²y² +y⁴ first term and 3rd term are perfect squares. = (x²)² + x²y² ... $tan45 + \sqrt{3 } cot60 + 3sin {}^{2} 60 + tan30 + cot45$ .