x^2 − 8x + 9
What two numbers when multiplied yield 9 but when added yield -8?
There are no such numbers.
Use the quadratic formula.
Answer: 4 = n
Step-by-step explanation:
5n + 34 = -2(1-7n)
Distribute negative 2 to both 1 and negative 7n. You do this first due to the rules of PEMDAS
5n + 34 = -2 + 14n
Add two to both sides of the equation in order to further isolate (n) in 14.
5n + 36 = 14n
Subtract 5n from both sides of the equation so that the values with (n) are on one side of the equation.
36 = 9n
Divide nine from 36 and 9n in order to isolate (n).
4 = n
This then gives you your final answer.
Answer:
x = 3.5
Step-by-step explanation:
To solve this you need to solve for x.
This is a two step equation so you need to first subtract 5 from itself and whatever you do to one side of the equation you have to do to the other side as well.
So 5 - 5 = 0
12 - 5 = 7
Then the equation becomes 2x = 12
Now it is a one step equation, so find the inverse operation of multiplication, which is division .
So 2 divided by 2 is 1 which also equals x by itself
7 divided by 2 equals 3.5
So x = 3.5
you can't really solve for it unless it equals something or there's a value for x. Assuming this logarithm is base 10... you can set it equal to y and simplify it.
2log(x) = log(x^2)
log(x^2) = y
x^2 = 10^y
