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Mathematics

Answered

Which expression is equivalent to 4x2 – 49?
A). (2x – 7)2
B). (x + 7)(4x – 7)
C). (2x + 7)(2x – 7)
D). (2x + 7)2

Answer :

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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)

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