Answer:
I hope this will help you :)
Step-by-step explanation:
(2p+3q)(4p+5q)
=2p(4p+5q)+3q(4p+5q)
=8p^2+10pq+12pq+15q^2
=8p^22pq+15q^2
(5m-6n)(8m+4n)
5m(8m+4n)-6n(8m+4n)
40m^2+20mn-48mn-24n^2
40m^2-28mn-24n^2
(6m-2n)(2m+8n)
6m(2m+8n)-2n(2m+8n)
12m^2+48mn-4mn-16n^2
12mn^2+44mn-16n^2
(10m-8n)(10m+9n)
10m(10m+9n)-8n(10m+9n)
100m^2+90mn-80mn-72n^2
100m^2+10mn-72n^2
(a-b)(3a+5b)
a(3a+5b)-b(3a+5b)
3a^2+5ab-3ab-5b^2
3a^2+2ab-5b^2
(5m-10n)(6m+12n)
5m(6m+12n)-10n(6m+12n)
30m^2+60mn-60mn-120n^2
30m^2-120n^2
