Question

Evaluate using suitable identity(2a-7)(2a-7)​

Answer 1

Step-by-step explanation:

(2a-7)^2

= 4a^2- 28 a + 49

Answer 2

Answer:

$(2a - 7)(2a - 7) \\ = {(2a - 7})^{2} \\ {(2a)}^{2} + {(7)}^{2} - 28a = \\ 4 {a}^{2} + 49 - 28a.$