So first set one side to zero
subtract 5 from both sides
3r^2-16r-12=0
factor
to find the factor in
ax^2+bx+c form when a>1
multiply a and c together
find what 2 numbers add up to b and multiply to ac so
a=3
b=-16
c=-12
ac=3 times -12=-36
factors that add up to -16
2 and -18 is the answer since 2 times -18=-36 and 2-18=-16 so
split the middle number up
3r^2-16r-12=0
3r^2-18r+2r-12=0
group
(3r^2-18r)+(2r-12)=0
factor out common factors
(3r)(r-6)+(2)(r-6)=0
reverse distribute (ab+ac=a(b+c) so
(3r+2)(r-6)=0
set each to zero
r-6=0
add 6
r=6
3r+2=0
subtract 2
3r=-2
divide 3
r=-2/3
r=6 or -2/3
Answer:
cant see picture
Step-by-step explanation:
Answer: 126.
Here is an example of my work, just add your prefered numbers and boom, 126.
Also, mine was 200 instead of 300 and I got 84. So just plug in your number and boom.
Answer:
Hi how are you doing today Jasmine
<span>The population of a species of rabbit triples every year. This can be modeled by f(x) = 4(3)^x and f(5) = 972.
The 5 that is found inside the function has a significant meaning.
It represents the population of a species of rabbit every year. It substitutes the variable x.</span>