Question

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1) (7x - 3y)²

2) (2x +7 ) (2x - 4)

3) 100 - 4c²​

Answer 1

Answer: 1) (7x)² - 2×7x×3y + (3y)²

: 2) 4x² + 6x - 28

: 3) - 4c² + 100

Step-by-step explanation:

1) (a - b)² = a² - 2×a×b + b²

2) 2x (2x - 4) - 7 (2x - 4)

= 4x² - 8x + 14x - 28

= 4x² + 6x - 28

That is, thank you!

Answer 2

Answer:

3) (10 - 2c)*2

na yar nu solunga

how is en par