Answer:
x = 7
Step-by-step explanation:
2x + 1 = -3x + 36
2x + 3x + 1 = -3x + 3x +36
5x + 1 = 36
5x + 1 - 1 = 36 - 1
5x = 35
5x/5 = 35/5
x = 7
Answer:
53 mins
Step-by-step explanation:
Answer:
1. Reduce 3x2-6x-240 to x^2 - 2x - 80
2. Use " ^ " to indicate exponentiation
3. Factor x^2 - 2x - 80 using completing the
x^2 - 2x + 1^2 - 1^2 - 80
(x+1)^2 - 1 - 80
(x+1)^2 - 81
(x+1)^2 - 9^2 = (x+1-9)(x+1 +9), or (x-8)(x+10)
Final answer, with all factors shown: 3(x-8)(x+10)
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
The standard form of a parabola (x^2 function) is:

If we algebraically manipulate this, we can have the vertex form:

Where
x = h will be the axis of symmetry
k will be the vertical shift
(h,k) would be the vertex
Now, the function given in this problem is given in vertex form:

From the original vertex form, we can say that this equation has the folllowing variable values:
a = 1
(3,4) is the vertex
x = 3 is the axis of symmetry
4 is the vertical shift
We are concerned with axis of symmetry. Thus, we can see that
x = 3 is the axis of symmetry