cc1507999 cc1507999

18-12-2020
Mathematics

contestada

how to factor
49y^{2}-9x^{2}

Respuesta :

devishri1977 devishri1977

18-12-2020

Answer:

(7y + 3x)(7y - 3x)

Step-by-step explanation:

a² - b² = (a + b)(a - b)

49y² - 9x² = (7y)² - (3x)² {a = 7y ; b - 3x}

= (7y + 3x)(7y - 3x)

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