Answer:
2
Step-by-step explanation:
According to the fundamental theorem of Algebra
A polynomial of degree 3 has 3 roots
However, complex roots occur in conjugate pairs, hence
There can only be 2 distinct complex roots.
For this case we have that by definition, the quadratic formula is:
A quadratic equation is of the form:

Option A: This equation can be solved without the quadratic formula

Option B:
This equation is not as easy to solve by factoring or as option A. We can use the quadratic formula.
Option C:

Similarly, this equation can be solved with the quadratic formula
Option D:

In this factored equation we can see that the roots are

Answer:
Option B, C
Answer:
Part A) The rate is 
Part B) In 1 year the tree grows 3 feet
Step-by-step explanation:
Part A) write the rate at which this tree grows as a fractions
we know that
To find out the rate at which the tree grows divide 1/4 foot by 1/12 year
so

Part B) how many feet does the tree grow in 1 year?
we know that
The tree grows at rate of 
Simplify

That means ----> The tree grows 3 ft in 1 year
therefore
In 1 year the tree grows 3 feet
Answer:

Step-by-step explanation:
The given expression is;

This implies that;

Equate the exponents;

Expand;




Sorry on my device i cant read it