Question

(x²+2y²)² simplify this question

Answer 1

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Answer 2

(X^2)^2 +(2y^2)^2 +2×x^2×2y^2 (Using Identity (a+b)^2 = a^2 + b^2 +2ab where a = (X^2) and b = (2y^2))
X^4+4y^4+4x^2 y^4
^= Square