Answer:
The original equation must have been:

Step-by-step explanation:
A quadratic equation is in the form of :

And it is solved in the form of :
and
Now the given equation is :

We can see that here;
a = 7
b = -5
c = -2
So, the original equation must have been:

Answer:

Step-by-step explanation:
The value of x is a number :)
Answer:

Step-by-step explanation:
Given:
Number of bushes planted = 5
Minimum number of bushes to be planted = 12
Let the number of bushes planted after planting 5 bushes be
.
Since, Tamara has already planted 5 bushes, total number of bushes planted is given as:

Now, as per question, total number of bushes should be 12 or greater than 12.
Therefore,
.