If P(-2/3) = 0, then one factor of the polynomial P(x) must be
A) 2x - 3
B) 3x + 2
C) 3x - 2
D) 2x + 3
2007-10-22 19:41:21 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
In order for P(-2/3) to be zero, one of its factors must be zero, because the only way to get a zero through multiplying is by multiplying by zero.
We can simply check each answer to see which one will evaluate to zero.
It turns out that (B) evaluates:
3x + 2
3(-2/3) + 2
-6/3 + 2
-2 + 2
0
Therefore, the answer is (B).
2007-10-22 19:47:19 · answer #1 · answered by Pinsir003 3 · 0⤊ 0⤋
B, because 3(-2/3) + 2 = -2 + 2 = 0
2007-10-22 19:58:57 · answer #2 · answered by Kenny H 3 · 0⤊ 0⤋
must be B:
3(-2/3) + 2 = 0
2007-10-22 19:44:46 · answer #3 · answered by icie 3 · 0⤊ 0⤋
answer is b, just plug it in, 3(-2/3) + 2 = -2+2=0
2007-10-22 19:44:26 · answer #4 · answered by starz8 2 · 0⤊ 0⤋
x-(-2/3)=0
x+2/3=0
3x+2=0
Hence 3x+2 is a factor
B) 3x + 2
2007-10-22 20:04:33 · answer #5 · answered by iyiogrenci 6 · 0⤊ 0⤋