Question

1) (3в-2)(3в+2)= 2) (7x-1)

Answer 1

Ответ:

1) (3в-2)(3в+2)=(3в)²-2²=9в²-4

2) условие неполное.

Объяснение:

• формула: (а-в)(а+в)=а²-в²

Answer 2

It seems that your question got cut off after mentioning "(7x-1)." Could you please provide the complete expression or equation you would like me to help you with?