Factorizacion

1.- 4x2 + 8x + 3 = 0 a= 4 b= 8 c= 3 x1= 2x-1 x2= 2x-3
x=-(8)±(8)2-44(3)2(4)
x=-8±64-488
x=-8±168x=-8±48 =-8+48 = -4 8 = -2 4= -1 2 = -2x + 1 = 0
=-8-48 = -128= -64 = -32 = -2x + 3 = 0
2.- No se puederesolver
3.- x2 – x + 8 a= 1 b= -1 c= 2 x1= x+2 x2 = x+4
x=-(6)±(6)2-41(8)2(1)
x=-6±36-322x=-6±42
x=-6±22 =x= -6+22 = -4 2 = -2
=x= -6-22 = -82 = -4
4.- 4x2 + 11x – 3 a=4 b= 11 c= -3 x1= 4x-1 x2= x+3
x=-(11)±(11)2-44(-3)2(4)
x=-11±121+488
x=-11±1698 x= -11+138 = 28 = 14 =-4x+ 1
x=-11±138 x= -11-138 = -248 = -3
5.- x2 – 2x – 8 a= 1 b= -2 c= -8 x1= x-4 x2= x+2x=-(-2)±(-2)2-41(-8)2(1)
x=2±4+322
x=2±362
x=2±62 x= 2+62 = 82 = 4
X=2-62 = -42 = -26.- 2x2 – 7x – 4 a=2 b=-7 c= -4 x1= x-4 x2= 2x+1
x=-(-7)±(-7)2-42(-4)2(2)
x=7±49+324
x=7±814x=7±94 x= 7+94 = 164 = 4
X=7-94 = -24 = -12 = 2x-1
7.- 2x2 - 3x + 1 a= 2 b=-3 c=1 x1= x-1x2= 2x-1
x=-(-3)±(-3)2-42(1)2(2)
x=3±9-84
x=3±14 x= 3+14 = 44 = 1
X= 3-14= 24 = 12 = 2x+ 1