Math, asked by naman3096, 6 months ago

using appropriate identity (4a-5b)²

Answers

Answered by itsanishkarao

4

Answer :

16a² + 25b² + 40ab

HOW

By using (a+b) ^2 = a^2+ b^2 + 2ab,

(4a-5b)²= (4a)² + (5b)² + 2× 4a×5b

= 16a² + 25b² + 40ab

Answered by lipi17

0

Answer:

(4a-5b)2 = 16a2 + 25b2 - 40ab

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