State which method should be applied as the first step for factoring the polynomial.
2a2 + 9a + 10
A) Use the ac method (or trial and error).
B) Find the GCF.
C) Group the terms.
D) Factor the difference of squares.
2007-07-12 17:39:36 · 4 answers · asked by Somebody 2 in Science & Mathematics ➔ Mathematics
find the factors of 10?
i dunno how i do it but the answer is
(2a+5)(a+2)
2007-07-12 17:44:03 · answer #1 · answered by Jay 4 · 0⤊ 0⤋
2a² + 9a + 10
Only possible factors of 2a² are 2a and a
(2a----) (a-----)
Now require factors of 10 that combine with 2a and a to give 9a.
Try 5 and 2:-
(2a + 5) (a + 2) which is correct.
Did this by trial and error: Method A)
2007-07-13 04:33:56 · answer #2 · answered by Como 7 · 0⤊ 0⤋
2a^2 + 9a + 10
= (2a + 5) (a + 2)
2007-07-13 00:46:30 · answer #3 · answered by rooster1981 4 · 0⤊ 0⤋
i think its a. btw, why do ppl post math questions during the summer. i dunno about everyone else but i have better things to do than math.
2007-07-13 00:48:00 · answer #4 · answered by Anonymous · 0⤊ 0⤋