Question

СРОЧНО ПОМОГИТЕ 30 БАЛЛОВ ДАЮ​

Answer 1

1)

5m - 5n + pm - pn =

= (5m - 5n) + (pm - pn) = 5(m - n) + p(m - n) = (m - n)(5 + p)

или:

= (5m + pm) - (5n + pn) = m(5 + p) - n(5 + p) = (m - n)(5 + p),

2)

xy - ty - y² + xt =

= (xy - y²) + (xt - ty) = y(x - y) + t(x - y) = (x - y)(y + t),

3)

45х³у⁴ - 9х⁵у³ - 15х²у² + 3х⁴у =

= (45х³у⁴ - 15х²у²) - (9х⁵у³ - 3х⁴у) = 15х²у²*(3ху² - 1) - 3х⁴у*(3ху² - 1) =

= (3ху² - 1)(15х²у² - 3х⁴у) =

= (3ху² - 1) * 3ху*(5ху - 3х3) =  3ху*(3ху² - 1)(5ху - 3х3)