Question

find the square root of (x^2 + 9y^2)^2​

Answer 1

$\huge\bf\underline\red{❦︎Answer❦︎}$

➪x² + √9y² = -3xy²

➪ x² - √9y² = 3xy²

Step-by-step explanation:

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Answer 2

(x² + 9y²) ²

ID: (a + b)² = a² + 2ab + b²

Here our a = x² and b = 9y²

= (x²)² + 2 (x²) (9y²) + (9y²)²

= x⁴ + 18 x²y² + 81y⁴

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