5 (8 4) = (5 × 8) + (5 × 4)
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The most general proccedure for this type of problems is the following:
For a quadratic function of the following form ; where b and c are real numbers.
1) Identify the value that accompanies the x, that is, the value "b"
2) Divide the value of b by 2 and then square it:
3) Add and subtract in the function the value of
4) Write the complete function of the form
For the function presented the result is as follows:
1) The value of b is 12
2)
3)
4)
Finally the function is:
The zero pair that must be added is 36 and -36