Melissa planted a tree that was 4 yards in height. how many inches is the tree?

The answer is 48 inches.

Step-by-step explanation:

144 inches

Step-by-step explanation:

1 yard = 36 inches so 4 yards would = 144

This equation has the next form:

To find if the equation has two complex solutions we have to check if the discriminant is negative, as follows:

Then, the first case has two complex solutions.

In the second case,

The discriminant in this case is:

Then, the second case has two complex solutions.

In the third case,

The discriminant in this case is:

Then, the third case has two real solutions.

In the fourth case,

The discriminant in this case is:

Then, the fourth case has two complex solutions.