搜索
1. $(x + 2)(x - 2)$.
2. $(2m + 5)(2m - 5)$.
3. $(-x + y)(-x - y)$.
4. $(4xy + 1)(4xy - 1)$.
5. $(2a - 3b)(2a + 3b)$.
6. $(y - x)(x + y)(x^2 + y^2)$.
7. $12\frac{3}{5} × 11\frac{2}{5}$.
8. $2023 × 2025 - 2024^2$.
9. $99 × 101 × 10001$.
10.$(x - 5)(x + 5) - (x - 1)(-x - 1)$
11. $(2x - y)(y + 2x) - (2y + x)(2y - x)$.
12. $(x - 5)(x + 5) - (x - 1)(-x - 1)$.
13. $(3a + 1)(3a - 1) - (1 - a)(3a + 2)$.
2. $(2m + 5)(2m - 5)$.
3. $(-x + y)(-x - y)$.
4. $(4xy + 1)(4xy - 1)$.
5. $(2a - 3b)(2a + 3b)$.
6. $(y - x)(x + y)(x^2 + y^2)$.
7. $12\frac{3}{5} × 11\frac{2}{5}$.
8. $2023 × 2025 - 2024^2$.
9. $99 × 101 × 10001$.
10.$(x - 5)(x + 5) - (x - 1)(-x - 1)$
11. $(2x - y)(y + 2x) - (2y + x)(2y - x)$.
12. $(x - 5)(x + 5) - (x - 1)(-x - 1)$.
13. $(3a + 1)(3a - 1) - (1 - a)(3a + 2)$.
答案：
1.$x^{2}-4$ 2.$4m^{2}-25$ 3.$x^{2}-y^{2}$ 4.$16x^{2}y^{2}-1$
5.$4a^{2}-9b^{2}$ 6.$y^{4}-x^{4}$ 7.$143\frac{16}{25}$ 8.$-1$
9.$99999999$ 10.$2x^{2}-26$ 11.$5x^{2}-5y^{2}$
12.$12a^{2}-a - 3$
5.$4a^{2}-9b^{2}$ 6.$y^{4}-x^{4}$ 7.$143\frac{16}{25}$ 8.$-1$
9.$99999999$ 10.$2x^{2}-26$ 11.$5x^{2}-5y^{2}$
12.$12a^{2}-a - 3$
查看更多完整答案，请扫码查看
