Answer
5) (5p+9)(p-2) 6) 3(k+7)(3k+1) 7) (b+7)(2b+3) 8) (x+2)(2x+1)
Explanation:
its kinda hard to explain cause all i have to say is factor out the numbers that are either in the second parenthesis to get the numbers in the first or vice versa. if i want to get into more detail, the fist equation becomes 5p^2+9p-10p-18 and then you factor.