Math, asked by klarencebrentcataga, 1 month ago

1. (5a - 7b)2²
2. (4y + 5)2²
3. (2x + 3y)²
4. (3x - 4y)²
5. (½s+⅔t)²​

Answers

Answered by poojithashankar2008
0

1 ) ( 5a - 7b ) 2²

( 5a - 7b ) × 4

20a - 28b

2 ) ( 4y + 5 ) 2²

( 4y + 5 ) × 4

16y + 20

3 ) ( 2x + 3y ) ²

( a + b ) = a² + 2ab + b²

4x² + 12xy + 9y²

4 ) ( 3x - 4y ) ²

( a + b ) = a² + 2ab + b²

9x² - 24xy + 16y²

5 ) ( 1 / 2 s + 2 / 3 t ) ²

( a + b ) = a² + 2ab + b²

1 / 4 s² + 2 / 3 st + 4 / 2 t²

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