Question

(a – 2 b)2 is equals to​

Answer 1

Answer:

use (a-b)^2

as so.by using this we get

a^2 +(2b)^2 -2× a× 2b

a^2 + 4 b^2 - 4 ab

it is the required answer of this question

hope it helps

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Answer 2

Step-by-step explanation:

since we know that,

(a-b)² = a²-2ab+b²

therefore,

(a-2b)² = a²-2×a×2b+(2b)²

= a²-4ab+4b²

THIS IS YOUR ANSWER AND I HOPE YOU ARE CLEAR NOW.