Question

Please answer fast and dont answer directly ​

Answer 1

Step-by-step explanation:

(1.3x² - 0.3y²)(1.3x² + 0.3y²)

By using identity a² - b² → (a+b)(a-b)

( we can also say, (a-b)(a+b) = a²-b² [in ques we'll use this] )

(1.3x² - 0.3y²)(1.3x² + 0.3y²) → (a-b)(a+b) → a²-b²

a = 1.3x²

b = 0.3y²

${ ({1.3x}^{2}) }^{2} - { ({0.3y}^{2}) }^{2}$

$= {13x}^{4} - {0.3y}^{4}$

♟ Hope it helps you ♟

Answer 2

Answer:

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