Question

Помогите срочно с примерами Даю 30 баллов! Заранее спасибо!​

Answer 1

1.

$1)a)(3p - 2)(3p + 2) \\ b)(1 - 5x)(1 + 5x) \\ v)(6 - 7a)(6 + 7a)$

$2)a)( \frac{1}{6} - c)( \frac{1}{6} + c) \\ b)(y - \frac{5}{6} )(y + \frac{5}{6} )$

$v)(5p - \frac{4}{11} )(5p + \frac{4}{11} )$

$3)a)(2x - y)(2x + y) \\ b)(4a - b)(4a + b) \\ v)(9k - c)(9k + c)$

$4)a)(6x - 5y)(6x + 5y) \\ b)(3a - 9x)(3a + 9x) \\ v)(7y - 8c)(7y + 8c)$

$5)a)(ab - 3)(ab + 3) \\ b)(x - cy)(x + cy) \\ v)(x {y}^{2} - 1)(x {y}^{2} + 1)$

2.

$1)a)(9 - 8xy)(9 + 8xy) \\ b)(12acx - 15)(12acx + 15)$

$2)a)4 {a}^{2} + 28ab + 49 {b}^{2} - \\ (9 {a}^{2} - 30ab + 25 {b}^{2} ) = \\ 4 {a}^{2} + 28ab + 49 {b}^{2} - 9 {a}^{2} + 30ab \\ - 25 {b}^{2}$

$- 5 {a}^{2} + 58ab + 24 {b}^{2}$

4.

$a)3 {x}^{2} - 19x + (6 {x}^{2} + 27x - 8x \\ - 36) = \\ 3 {x}^{2} - 19x + 6 {x}^{2} + 27x - 8x - 36 \\ = 9 {x}^{2} - 36 = (3x - 6)(3x + 6)$

$b)15 {a}^{2} + 20a - 12a - 16 \\ - 14 {a}^{2} - 8a = {a}^{2} - 16 = \\ (a - 4)(a + 4)$

Остальное не знаю