Question

Expand using suitable identity

49x² = 25y²​

Answer 1

To Find :

• we have to expand 49x² = 25y² using suitable Identity

Solution :

49x² = 25y²

49x² - 25y² = 0

= (7x)² - (5y)²

• By using Identity a² - b² = (a + b)(a - b)

(7x)² - (5y)²

= (7x + 5y)(7x - 5y)

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