20 - 4 - 2 = 14. A negative number is just like subtracting it.
Answer:
Multiplication -> Division
Squaring -> Square rooting
Cubing -> Taking the cube root
Addition -> Subtraction
Alternative:
* -> /
^2 -> √
+ -> -
^3 -> 3√
Basically, an inverse is a mathematical manipulation where one operation undoes the action of the other.
Answer:
Therefore the value of x is

Step-by-step explanation:
Given:
which is

To Find:
x = ? using Quadratic Formula
Solution:
For a Quadratic Equation ax² + bx + c = 0 , Formula Method is given as

On Comparing with above we get

Substituting a , b , c in Formula method we get

Therefore the value of x is

Answer:
Step-by-step explanation:
Pentagon
So, Pentagon has 72 degree rotational symmetry.