Question

use the suitable identity
(2a-7) (2a-7)
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Answer 1

Question:

Use The Suitable Identity (2a-7) (2a-7)

Solution:

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

by using identity (ii) ${\boxed{\sf{\red{(a-b)²=a²+b²-2ab}}}}$

$\bold{(2a)²+ 7²+2×2a×(-7)}$

$\bold{4a²+49-28a}$

hope it helps ☺️

Answer 2

Answer:

mark him brainliest plz...