TAREA DEL DIA 20/NOV/09

1).-6X2-18X-24=
(6)(-24)=-144
B=-18
-24,6
(6X-24)(6X-24)
(6X-24)(6X-24)
(6X-24)(X+1)

2).-4X2+12X+6=
(4X)(6)=24
B=12

3).-5X2+40X+7=
(5X)(7)=35
B=40

4).-16X2-40X+25=
(16X)(25)=400
B=-40
-20-20
(16X2-20X)(-20X+25)
4X(4X-5)-5(4X-5)
(4X-5)(4X-5)

5).-X2+18X+81=
(1)(81)=81
B=18
9,9
(X2+9X)(9X+81)
X(X+9)9(X+9)
(X+9)(X+9)

6).-X2+20X+100
(1)(100)=100
B=2
(10)(10)
(X2+10X)(10X+100)
X(X+10)10(X+10)
(X+10)(X+10)

7).-49Z2+42Z+9=
(49Z)(9)=441
B=42
21,21
(49Z2+21)(21Z+9)
7Z(7Z+3)3(7Z+3)
(7Z+3)(7Z+3)

8).-49X2+28X+4=
(49)(4)=196
B=28
(49X2+14X)(14X+4)
7X(7X+2)(7X+2)
(7X+2)(7X+2)

9).-25X2+10X+1=
(25X)(1)=25
B=10
(25X2+5)(5X+1)
5X(5X+1)(5X+1)
(5X+1)(5X+1)

10).-2X2+28X+98=
(2)(98)=196
B=28
14,14
(2X2+14)(14X+98)
2X2(X+7)4(X+7)
(X+7)(X+7)

11).-X2+6X+9=
(1)(9)=9
B=6
3,3
(X2+3)(2X+14)
X(X+3)3(X+3)
(X+3)(X+3)

12).-16X2-56X+49=
(16X)(49)=784
B=-56
-28,-28
(16X2-28X)(-28X+49)
4X(4X-7)-7(4X-7)
(4X-7)(4X-7)