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Answer:
(2x + 7)(2x - 7)
Step-by-step explanation:
Given:
4x² - 49
Find:
Factories
Computation:
4x² - 49
Using Identity
⇒ a² - b² = (a + b)(a - b)
⇒ 4x² - 49
⇒ (2x)² - (7)²
(2x + 7)(2x - 7)