Question

ii) (2a - 7) (2a - 7)​

Answer 1

Step-by-step explanation:

(2a-7)²

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Answer 2

Step-by-step explanation:

use this formula

(a - b) ^{2} = a ^{2} + b ^{2} - 2ab

(2a-7)^2=4a^2+49-2(2a)(7)

(2a-7)=4a^2+49-28a