Question

Bro i did all this work for someones question just to find out that the persons answer got deleted so if anyone needs these there the are
Answers:
1. (b+3)(a+3)
2.(b-1)(-3a+b)
3.could not simplify further (remains the same)
4.12a^2-60ab+60ab^2-6a+12b
5.(3y+5)(5x+3)

Step-by-step explanation:
1. (ab+3a)+(3b+)
FACTOR OUT THE A from ab+3a : a(b+3)
FACTOR OUT 3 FROM 3b+9: 3(b+3)
a=(b+3)+3(b+3)
FACTOR OUT COMMON TERM b+3
= the answer above

2. (-3ab+3a)+(b^2-b)
FACTOR OUT -3a from -3ab+3a: -3a(b-1)
Factor out b from b^2-b: b(b-1)
=3a(b-1)+b(b-1)
Factor out common term b-1
=the answer above

4.expand (a-2b)^2: a^2-4ab+12b
15(a^2-4ab+4b^2)-6a+12b
Apply distributive law:
15(a^2-4ab+4b^2)=15a^2+15(-4ab)+15 times 4b^2
= 15a^2+15(-4ab)+15 times 4b^2-6a+12b
Simplify: 15a^2+15(-4ab)+15 times 4b^2 : 15a^2-60ab+60b^2
=the answer above

5. Group by common factors
=(15xy+25x)+(9y+15)
Factor our 5x from 15xy+25x: 5x(3y+5)
Factor out 3 from 9y+15: 3(3y+5)
=5x(3y+5)+ 3(3y+5)
Factor out the common term 3y+5
= the answer above

Answer 1

Answer:

I don't understand

please repeated again