Math, asked by roshnilagade45, 2 months ago

expand (4m -5n)² how to expand it

Answers

Answered by ekta2031

0

Answer:

(a-b) ^2 = a^2+b^2-2ab

(4m-5n) ^2

16m^2 + 25n^2 - 20mn

Answered by jhumpapdas

2

Answer:

16m² - 25mn + -9n²

Step-by-step explanation:

( a - b ) = a² - 2ab + b²

= ( 4 m )² - 2 (4m) ( 5n ) + ( 5n )²

= 16m² - 25mn + -9n²

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