please jawab pake caranya,,buat bsk soalnya

1. 5p^2(6p-3q)
= [5p^2×6p] + [5p^2×(-3q]
30P^3 - 15p^2q

2. 2pq(3p^2 - 4pq - 7q^2)
= 6p^3q - 8pq^2 - 14pq^3

3. 5a^2(2a^2 + 8a^2b - 5ab^2
= 10a^4 + 40a4b - 25 a^2b^2

Utk lebih jelasnya id line saya : kentaroaksyal

1.5p^2(6p-3q)=
...(5p^2)(6p)+(5p^2)(-3q)=
...30p^3+-15p^2q=
...30p^3-15p^2q

2.-2pq(3p^2-4pq-7q^2)=
...(-2pq)(3p^2)+(-2pq)(-4pq)+(-2pq)(-7q^2)=
...-6p^3q+8p^2q^2+14pq^3

3.-5a^2(2a^2+8a^2b-5ab^2)=
...(-5a^2)(2a^2)+(-5a^2)(8a^2b)+(-5a^2) (-5ab^2)=
...-10a^4+(-40a^4b)+25a^2b^2=
...-10a^4-40a^4b+25a^2b^2

maaf bila salah.