Question

x2-5x+6-0 =
2x2-7x+3-0=
-x2+7x-10=0=
x2-2x+1-0=
x2-4x+4-0=
2x-3=1-2x+x2=
x2+(7-x)2-25=
7x2+21x-28-0
-x2+4x-7-0=

Answer 1

-3x+6

-7x+7

5x-10

1

-2x+4

2

no lo sé

21x-14

2x-7

Answer 2

Explicación paso a paso:

-3x+6=0 x= -6

-3 x= 2

-5x+5=0 x= -1

5x-10 x= -2

2x - 2x x=1

-2x+4=0 x= -2

2x+2x-2x = 1+3

2x=2

x=1

2x+14-2x-25=0

0-11=0

21x -14 =0

21x=14

X= 1.5

2x-7=0

2x=7

x=3.5