How do you find a polynomial and factor it completely?

a² + 10a + 16

Find two numbers whose product equals 16 and sum equals 10:

Product = 16               Sum = 10

    1 * 16                     1 + 16 = 17      doesn't work

    2 * 8                     2 + 8 = 10      THIS WORKS!

    4 * 4                      4 + 4 = 8      doesn't work

Since 2 & 8 satisfy our requirements, those are the values that go into the parentheses.

(a + 2)(a + 8)

Note: when there is a coefficient for a², a different method is used to find the factors.

this is false ^.^ lol

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d