jaialonalon16 jaialonalon16

13-03-2019
Mathematics

contestada

Factor 9x^2-49y^2 Enter your answer in the box

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jimrgrant1 jimrgrant1

13-03-2019

Answer:

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

Step-by-step explanation:

9x² - 49y² ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

here 9x² = (3x)² ⇒ a = 3x and 49y² = (7y) ⇒ b = 7y

9x² - 49y²

= (3x)² - (7y)² = (3x - 7y)(3x + 7y)

Answer Link

monsterh84 monsterh84

13-03-2019

Answer:

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

Step-by-step explanation:

Answer Link

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