Question

Помогите пожалуйста! С 305 по 307

Answer 1

305
6) 15m - 30m^2 = 15m(1 - 2m)
7) 9xy + 6x^2 = 3x(3y + 2x)
8) a^2 - ab = a(a - b)
9) -(p^2)•q - pq^2 = -pq(p + q)

306
1) x^3 - x^2 = x^2 • (x - 1)
2) a^4 + a^2 = a^2(a^2 + 1)
3) m^3 - m^5 = m^3(1 - m^2) = m^3(1-m)(1+m)
4) a^3 + a^7 = a^3(1 + a^4)
5) 3b^2 - 9b^3 = 3b^2(1 - 3b)
6) 7a^3 + 6a = a(7a^2 + 6)
7) 4y^2 + 12y^4 = 4y^2(1 + 3y^2)
8) 5m^5 + 15m^2 = 5m^2(m^3 + 3)
9) - 16a^4 - 20a = -4a(4a^3 + 5)

307
1) m^4 - m^2 = m^2(m^2 - 1) = m^4(m+1)(m-1)
2) a^4 + a^5 = a^4(1 + a)
3) 6a - 12a^3 = 6a(1 - 2a^2)
4) 18p^3 - 12p^2 = 6p^2(3p -2)
5) 14b^3 + 7b^4 = 7b^3(2 + b)
6) 25m^3 - 20m = 5m(5m^2 - 4)