Factor the polynomial completely.
x^2 + x + 3
a) (x + 1)(x + 3)
b) (x - 1)(x - 3)
c) (x + 3)(x - 1)
d) cannot be factored

cannot be factored because no number can be multiplied to give you 3 and at the same time give you as

product & sum

what multiplies to 3 and adds to 1?

nothing, therefore this graphs doesn’t have any zeros

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)