fin. apps // factoring test 3.4.20
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gcf
1st method to try
perfect square trinomial
3 terms factored into 2 binomials that are the same (x+y)(x+y) SHORT CUT: are a and c perfect squares is the sr of a * sr of c half of b combine srs square equation
simple trinomial
ax2+bx+c, a=1 3 terms factors of c whose sum is b
complex trinomial
form ax2+bx+c, a=/1 X divide by a the in end
factor by grouping
four terms factor gcf out
degree other than 2
x4+7x2+10 (x2+2)(x2-5)
x2-4
(x+2)(x-2)
sum/diff of 2 perfect squares
SAME/OPP/POS a3+b3= (a+b)(a2+ab+b2)
d2ps
SUBTRACTION (x + a)(x - a) both terms are perfect squares
