solve (a-2b) ² using identitity
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Answered by
12
★ EXPONENTIALLY RESOLVED ★
( a - 2b )² =
a² + (2b)² - 2 ( a) ( 2b ) =
a² + 4b² -4ab
By using identity -
(a - b)² = a² + b² - 2ab
★✩★✩★✩★✩★✩★✩★✩★✩★✩★✩★
( a - 2b )² =
a² + (2b)² - 2 ( a) ( 2b ) =
a² + 4b² -4ab
By using identity -
(a - b)² = a² + b² - 2ab
★✩★✩★✩★✩★✩★✩★✩★✩★✩★✩★
Answered by
5
Answer:
(a-2b)²
= (a)²- 2*a*2b + (2b)² [ identity:- (a - b)²= a²-2ab+b²]
=a²- 4ab + 4b²
Step-by-step explanation:
Hope it will help you
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