1) (8+x) (8-x)+(x+2)² 2) (9-b)(9+b)-(3-b)(9+3b+b²) 3) (5x-2)(x+1)-(5-2x)²

Question

1) (8+x) (8-x)+(x+2)²
2) (9-b)(9+b)-(3-b)(9+3b+b²)
3) (5x-2)(x+1)-(5-2x)²

Answer 1

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Comments

Пасиб