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fredd [130]
3 years ago
14

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

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
7 0

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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What's the solution of the following linear system? 5x + 2y = 9 –5x – 2y = 3
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━━━━━━━☆☆━━━━━━━

▹ Answer

(-39/35, 9/7)

▹ Step-by-Step Explanation

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