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


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