b2 + b2 = 2b2
(when terms are alike, just add them up)
b2 + b = 30b = 5
4b.
4b
4b
If you mean: b squared+b+25 then the given quadratic expression can't be factored because its discriminant is less than zero.
It is: b+b+b = 3b
b+b+b+c+c+c+c =3b+4c
b + a + b - a = 2b
a-b+a-b+2b+a = 4a
3b
b + b + b + c + c + c + c = 3b + 4c
b times b times b = b3 b plus b plus b = 3b