For f(x)=ax^2+bx+c
the axis of symmetry is -b/2a
f(x)=2x^2+4x+2
a=2
b=4
-4/(2*2)=-4/4=-1
the axis of symmetry is x=-1
B
Answer:
see explanation
Step-by-step explanation:
Given
-
[ -
c + 6c + 1 ] - 3c
Distribute the square bracket by - 
=
c - 3c -
- 3c ← combine like terms
=
c - 6c - 
=
c -
c - 
= -
c - 
Answer:
120
Step-by-step explanation:
2x+x=360
3x=360
x=120
Answer:
-3
Step-by-step explanation:
Just subtract it like it was the other way around then add a minus (-)