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china2221
china2221
10.04.2020 • 
Mathematics

Practice:
This is the AC method. A is the leading coefficient and C is the constant. The you tube video will give
examples of the AC method (the first videos uses the same arithmetic, but does not use grouping)
Once you identify that you can use (-9) and (-2) to multiply to equal 18, and ADD
to be -11, then you can SUBSTITUTE the -9 and -2 for the -11 in the polynomial.
does this look right? Can you SEE the substitution for the MIDDLE TERM? we
substitute -9x and -2x for -11x because it is EQUAL and will help us GROP by
giving us the CORRECT common FACTORS
6x² - 9x - 2x + 3
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