Please help I'll give thanks and brainliest if you answer all correctly.

All of these are very similar.

See below.

Step-by-step explanation:

For each problem, the first line below the problem is the result of factoring and is bold. If there is a second bold line below, then it's factored and simplified.

Problem 1.

5(a + 3)^2 - (a + 3) =

= (a + 3)[5(a + 3) - 1]

= (a + 3)[5a + 15 - 1]

= (a + 3)(5a + 14)

Problem 2.

p^2 - 6 - q(p^2 - 6)^2 =

= (p^2 - 6)[1 - q(p^2 - 6)]

Problem 3.

m(m + n) - 3m(m + n)^2 =

= m(m + n)[1 - 3(m + n)]

= m(m + n)[1 - 3m - 3n]

c is the correct answer

step-by-step explanation: