Factor just the first two terms:
factor out
Factor just the last two terms
(((-x+3}}}
factor out
Substitute for the
first two terms and
for the last two terms in
Now factor the whole parentheses
out of both:
The binomial in the second parentheses is the
difference or two squares, as you see:
So it factors as :
Use the zero-factor principle:
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Get on the right by adding to both sides of:
Think of two whole numbers which when multiplied gives
and when added gives . They are
and . So the left side factors as
Use the zero-factor principle:
Edwin
