Question

Expand the Following
(5y - 8)2​

Answer 1

Answer:

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(5y - 8)²

= using identity : ( a - b )² = a² - 2ab + b²

(5y - 8)² = ( 5y )² - 2 ( 5y ) ( 8 ) + ( 8 )²

= 25y² - 80y + 64

Answer 2

Answer:

Here,

Step-by-step explanation:

(5y - 8) (5y - 8)

5y(5y - 8) -8(5y - 8)

5y(5y) + 5y(-8) -8(5y) -8(-8)

25y² + 40y + 40y + 64

25y² + 80y + 64

Hope it helps,