Question

(2a+7) (2a-7) evaluate using statements​

Answer 1

Answer:

(a^2 - b ^2) =(a+b) (a-b) using identity

(2a)²- (7)²

4a² - 49

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Answer 2

Answer:

$4 {a}^{2} - 49$

Step-by-step explanation:

Using the identity,

(a+b)(a-b) = a^2 - b^2

(2a + 7)(2a - 7) = (2a)^2 - (7)^2

= 4a^2 - 49

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