Question

Даю 60 баллов!!! СРОЧНО!!!! Разлажение на множители 46-50​

Answer 1

46.

pq - 20k³ - 4k²p - 5qk =

= p(q - 4k²) - 5k(4k² + q) =

= p(q - 4k²) + 5k(q - 4k²) =

= (q - 4k²)(p + 5k).

47.

15x² + 2yz - 5xz - 6xy =

= 5x(3x - z) + 2y(z - 3x) =

= 5x(3x - z) - 2y(3x - z) =  

= (3x - z)(5x - 2y),

48.

mp + 10n² - 2mn - 5np =

= m(p - 2n) + 5n(2n - p) =

= m(p - 2n) - 5n(p - 2n) =

= (p - 2n)(m - 5n),

49.

x⁴ + 2a²x² - 4a²b² - 4b⁴ =

= x²(x² + 2a²) - 4b²(a² + b²),

50.

a⁴ - 4a³b - 12a²b² - 8ab³ - b⁴ =

= (a⁴ - b⁴) - (4a³b + 12a²b² + 8ab³) =

= (a² - b²)(a² + b²) - 4ab(a² + 3ab + 2b²) =

= (a - b)(a + b)(a² + b²) - 4ab(a² + 3ab + 2b²)