Please take a photo of this problem... it looks very hard when it is written in the way you did.
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If I am reading this correctly the answer should be 1,977,326,743x^3</h3>
Answer:
4(4x1-16)
Hope this helps
Have a good day :)
PS I disibuted 4 to 4x1 to get 16 and 4 to -16 to get -64
Step-by-step explanation:
Given:
The focus of the parabola is at (6,-4).
Directrix at y=-7.
To find:
The equation of the parabola.
Solution:
The general equation of a parabola is:
...(i)
Where, (h,k) is vertex, (h,k+p) is the focus and y=k-p is the directrix.
The focus of the parabola is at (6,-4).
On comparing both sides, we get
...(ii)
Directrix at y=-7. So,
...(iii)
Adding (ii) and (iii), we get
Putting in (ii), we get
Putting 
in (i), we get
Therefore, the equation of the parabola is .
The property of soils which depends on the size of particles is Texture.
<h3>Properties of Soil</h3>
The properties of Soil include colour, odor, temperature, and texture as measured by porosity, mouldability and a host of other texture effects.
- It is evident that the texture of soil is dependent on the size of the particles as it affects how packed the particles of the soil is.
Read more on properties of soil;
brainly.com/question/26462165
F(x)= (x+13)(x-2) in expanded form, it would be x^2+11x-26
