Easy...
to even begin to factor..you must factor out a 3, to simplify your answer.
3(12

-7x-10)
Now, you can factor.

So..to find the answer...
12*-10=-120x
and
you would use -7x
What multiplies to -120..but adds to -7?
-15*8=-120
and
-15+8=-7
To find the answer, plug in what you know..
3(3x+2)(4x-5)
Thus, your answer.
Answer:
x=3, y=-2, z=1
Step-by-step explanation:
I solved by substitution
Answer:
i think its B
Step-by-step explanation:
Answer:
a1=2 and r=-1
Step-by-step explanation:
Given
geometric series= 2-2+2-2+2
geometric sequence has a constant ratior r and is given by
an=a1r(r)^(n-1)
where
an=nth term
r=common ratio
n=number of term
a1=first term
In given series:
r= a(n+1)/an
= a(2)/a1
= -2/2
=-1
so a1=2 and r=-1 !