Question 78395
IF IT IS THE FOIL TECHNIQUE THEN:
F=FIRST, O=OUTER, I=INNER & L=LAST FACTORS WHEN MULTIPLYING FACTORS LIKE:
(X+2)(X-5)
FIRST IS X*X=X^2
OUTER IS -5*X=-5X
INNER=2*X=2X
LAST=2*-5=-10
COMBINING LIKE TERMS WE GET:
X^2-5X+2X-10
X^2-3X-10
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