Question

simplify usingidentities (2a-7) (2a-7)​

Answer 1

Answer:

(2a−7)(2a−7)=(2a−7)  

2

 

using identity (a−b)  

2

=a  

2

−2ab+b  

2

 

(2a−7)  

2

=(2a)  

2

−2×2a×7+7  

2

 

(2a−7)  

2

=4a  

2

−28a+49

Step-by-step explanation:

Answer 2

Answer:

(2a-7)=(7a-2)

Step-by-step explanation:

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