Desmos graphing calculator will draw this graph for you.
draw 2 curves
y = x^4 + x^3
and
y = 4x^2 + 4x
The roots are the points where the 2 curves intersect.
You can see by simple substitution that one root is zero.
x^4 + x^3 - 4x^2 - 4x = 0
f(2) = 16 + 8 - 4(4) - 4(2) = 0 so 2 is another root
f(-2) = 16 - 8 - 16 + 8 = 0 so -2 is another root
f(-1) = 1 - 1 - 4 + 4 = 0 so -1 is the other root
The answer is A
Answer:

Step-by-step explanation:

→ Minus 20 from both sides

→ Multiply both sides by -4

The measure of the third side is 2x + 2y
A triangle can be described as a polygon with three sides. The sum of the angle in a triangle is 180 degrees.
<u><em>Types of triangles are: </em></u>
- right angled triangle
- scalene triangle
- equilateral triangle
- isosceles triangle
The perimeter of a triangle is the sum of its three sides
(3x + 4y) + (5x - y) + s = 10x + 5y
Add similar terms
8x +3y + s = 10x + 5y
Make s the subject of the formula
s = 2x + 2y
To learn more about perimeter of a triangle, please check: brainly.com/question/24388271?referrer=searchResults
Answer:
x=18
Step-by-step explanation:
isolate x to one side of the equation:
2x=26+10
2x = 36
divide by 2 for both sides
x = 36\2
x= 18
Answer:

Step-by-step explanation:
we have

Solve for x
That means ---> Isolate the variable x
Divide by 4 both sides

Apply ln both sides
![ln[(e^x)]=ln(3.19)](https://tex.z-dn.net/?f=ln%5B%28e%5Ex%29%5D%3Dln%283.19%29)
Apply property of logarithms (power rule) left side

Remember that


