Math, asked by wajidbmengal, 11 hours ago


49(2a - 3b)^2 - 16(a + 2b)^2
explain please. ​

Answers

Answered by janapsr2011
1

Step-by-step explanation:

49(2a - 3b)^2 - 16(a + 2b)^2

= 49( 4a^2 - 12ab + 9b^2 ) - 16( a^2 + 4ab + 4b^2 )

= (196 - 16)a^2 - (588 + 64)ab + (441 - 64)b^2

= 180a^2 - 652ab + 377b^2

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