Answer:
(x+1)(x+8)
Step-by-step explanation:
x^2+9x+8
You just need to multiply the first number to the last. (a·c) In this case *a* is jus a positive 1. Then, you just find a product to the result you got from (a·c) that when it is added together the result is the same as the one you have as ¨b¨.
Also the sign betwee b and c tells you that if it is positive both of your products are going to have the same sign, and if it is negative it means that they are going to be different,(one negative and one positive). If the sign is positive then go to the sign between a and b, this tells you what sign your factors will have.
<h2>x^2+9x+8</h2>
a·c=8
<u>Product Sum</u>
1,8 8
2,4 6
ect... ect...
x^2+x+8x+8
x(x+1) 8(x+1)
(x+1)(x+8)
<u />
![\sf-4R-2r+5](https://tex.z-dn.net/?f=%5Csf-4R-2r%2B5)
is already in simplest form.
But if you meant to say
![\sf-4r-2r+5](https://tex.z-dn.net/?f=%5Csf-4r-2r%2B5)
, we would combine the first two terms.
Adding/subtracting like terms is the same as adding/subtracting whole numbers.
![\sf-4-2=-6](https://tex.z-dn.net/?f=%5Csf-4-2%3D-6)
Therefore:
![\sf-4r-2r=-6r](https://tex.z-dn.net/?f=%5Csf-4r-2r%3D-6r)
Which gives us:
Answer:
96 km/hr
Step-by-step explanation:
Average number of kilometers per hour = 4,608 km / 48 hours
Average number of kilometers per hour = 96 km/hr
Set each binomial equal to zero and solve for your variable.
k + 1 = 0
Subtract 1 from both sides.
k + 1 - 1 = 0 - 1
Combine like terms
k + 0 = - 1
k = - 1
Same thing for the second binomial.
k + 5 = 0
k + 5 - 5 = 0 - 5
k + 0 = - 5
k = - 5
Your equation then has two solutions:
k = - 5, - 1
We need to convert 2 kilograms into pounds. First, we find how many pounds are in 1 kilogram.
There are about 2 pounds in one kilogram.
Then we multiply 2 pounds by 2 kilograms to convert the 2 kilograms into pounds.
2 * 2 = 4
So, the answer to this question is 4 pounds.