Answer:
![5(x-2)^2](https://tex.z-dn.net/?f=5%28x-2%29%5E2)
Step-by-step explanation:
![5x^2-20x+20=\\5(x^2-4x+4)=\\5(x-2)^2](https://tex.z-dn.net/?f=5x%5E2-20x%2B20%3D%5C%5C5%28x%5E2-4x%2B4%29%3D%5C%5C5%28x-2%29%5E2)
Answer:
X= 9
Step-by-step explanation:
16x-15 = 30+11x
16x-11x =30+15
5x = 45
x=45/5
x=9
I think that should be it
Answer:
first option
Step-by-step explanation:
1/7
I hope this is correct...
If the coat is 120$ then 1/3 is taken off it would be 80$
Step-by-step explanation:
1/3 of 120 is 40. 40x 3 is 120.
For a function (fn) to be odd:
f(x) = - f(-x)
For a fn to be even:
f(x) = f(-x)
For a fn to be neither even nor odd
f(x) != f(-x) [No Relation]
(-x)^n = x^n for n -> even
(-x)^n = -x^n for n -> odd
In your example:
f(x) = -4x^3 + 4x
f(-x) = -4 (-x)^3 + 4 (-x)^1 ( 3 and 1 are odd powers )
f(-x) = 4x^3 - 4x (take -1 common to do the check)
f(-x) = -( -4x^3 + 4x ) = - f(x) [between the bracket was the original fn]
f(x) = - f(-x)
so the function is odd also called symmetric about the origin