It would be half of the coefficient of x squared added to both sides:
So half of 8 ( the coefficient of 8x) is 4;
The number 4 squared is 16, so you would add that to both sides.
You do this so that you can easily factor the left side: x^2 + 8x + 16 = 4 + 16
(x + 4)(x+4) = 20
Answer:
The factor form is:
Step-by-step explanation:
Here we have to find the factor of the expression:
So we need to take out the common terms, as we do for finding the greatest common factors.
Now the expression that is given can be re-written as:
Next, we will find the common terms, as follows;
Now we will factorise the expression:
as follows;
So the final factor form is:
You have to analyze the problem, to find out what is the dependent variable, which is y. Also, what unit is the independent variable which is x.
To find the answer subtract 10 from both sides. x^2 = 19
Take the square root of both sides to get x = the square root of 19
