Answer:
see explanation
Step-by-step explanation:
A rational number can be expressed in the form
where a and b are integers
Given
- 27 = ← in rational form
Thus - 27 is a rational number
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Given a quadratic equation 
1. the first thing we do when we want to compete the square, is write the coefficient of x as 2 times a number.
In our case the coefficient of x is 10, so we write 10 as 2*5
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Answer:
1. the first thing we do when we want to compete the square, is write the coefficient of x as 2 times a number.
In our case the coefficient of x is 10, so we write 10 as 2*5
2. then we write +
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