2007-03-28 09:30:25 · 7 answers · asked by Anonymous in Education & Reference ➔ Homework Help
thanks. only got an hour of sleep last night and i have tons of overdue math. brain far. and im sitting there like "aahhhh what adds to 17 and multiplies to be -18?!?!?!. thanks. except for the guy that said a.
2007-03-28 09:36:24 · update #1
(a+18)(a-1)
2007-03-28 09:34:02 · answer #1 · answered by bigbit22 3 · 0⤊ 0⤋
You have to find factors of -18 that add up to +17. In this case it is -1 and 18.
(a-1)(a+18)
2007-03-28 09:35:28 · answer #2 · answered by J_Dawg 2 · 0⤊ 0⤋
look for two numbers that multiply to -18 and add to 17
-1 and 18
(a - 1) (a + 18)
2007-03-28 09:34:38 · answer #3 · answered by 7 · 0⤊ 0⤋
(a -1)(a + 18)
2007-03-28 09:34:33 · answer #4 · answered by crzywriter 5 · 0⤊ 0⤋
let me see...
(a+18) (a-1)
there is a linear binomial...
the square root of a^2 is (a) in the -nomials...
and to get -18, the multiplication will be either -18 x 1 or 18x-1.
AND to get 17, the positive has to be bigger than the negative, which I get 18 -1 = 17
2007-03-28 09:34:29 · answer #5 · answered by :O Hm.... 3 · 0⤊ 0⤋
(a-1)(a+18)
2007-03-28 09:34:10 · answer #6 · answered by Julie 3 · 0⤊ 0⤋
(a+18)(a-1)=0
a=-18 ; 1
2007-03-28 09:36:23 · answer #7 · answered by Dave aka Spider Monkey 7 · 0⤊ 1⤋