Question

(5x2-7y2) (5x2+7y2).what is the answer?

Answer 1

Answer:

25x⁴ - 49y⁴

Step-by-step explanation:

(5x² - 7y²)(5x² + 7y²)

(a - b)(a + b) = a² - b²

(5x² - 7y²)(5x² + 7y²) = (5x²)² - (7y²)²

= 25x⁴ - 49y⁴

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Answer 2

Step-by-step explanation:

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