ТЕРМІНОВОО!!!!!!ДАЮ 50 БАЛІВ!!!!! виконайте множення 1) (5-a)(5+a),2) (7-x)(7+x),3)(2x-7)(2x+7),4) (3x-2y)(3x+2y),5) (4x+9y)(4x-9y), 6) (a²-3)(a²+3), 7) (a⁴-1)(a⁴+1), 8) (x³-2y)(x³+2y), 9) (2x²-3)(2x²+3), 10) (5x²+4y³)(5x²-4y³),11) (8ab-1) (8 ab+1), 12) (8-xy)(8+xy);

Ответ:

1) The expression (5-a)(5+a) simplifies to 25 - a^2.

2) The expression (7-x)(7+x) simplifies to 49 - x^2.

3) The expression (2x-7)(2x+7) simplifies to 4x^2 - 49.

4) The expression (3x-2y)(3x+2y) simplifies to 9x^2 - 4y^2.

5) The expression (4x+9y)(4x-9y) simplifies to 16x^2 - 81y^2.

6) The expression (a²-3)(a²+3) simplifies to a^4 - 9.

7) The expression (a⁴-1)(a⁴+1) simplifies to a^8 - 1.

8) The expression (x³-2y)(x³+2y) simplifies to x^6 - 4y^2.

9) The expression (2x²-3)(2x²+3) simplifies to 4x^4 - 9.

10) The expression (5x²+4y³)(5x²-4y³) simplifies to 25x^4 - 16y^6.

11) The expression (8ab-1)(8ab+1) simplifies to 64a^2b^2 - 1.

12) The expression (8-xy)(8+xy) simplifies to 64 - x^2y^2.