Question

25p^2-5p-2 factor the trinomial

Answer 1

my method is multiply the coefficient of p^2 by the constant.... 25 x -2 = -50

find 2 factors of 50 that add to - 5 ...... -10 and 5

so you have

\[[(25p - 10)(25p + 5)]/25\]

simplifying will give (5x - 2)(5x +1)

Answer 2

what happened to p^2?

Answer 3

oops should read (5p - 2)(5p +1)

Answer 4

but why do you have (25p-10)(25p+10)/25?

Answer 5

part of the method I use for solving difficult trinomials....

by doing that the next step is to simplify the numerator..

\[[5(5p-2)5(5p+1)]/25\]

\[= [25(5p - 2)(5p+1)]/25\]

cancel the 25s to get the answer

Answer 6

okay. one more question where did you get (5p+1)?