Question

Determina el carácter de las raíces de las siguientes ecuaciones.

^2 lo lees como exponente 2 para el término cuadrático.

a) x^2 +81 = 0



b) 4x^2 -20x +25 = 0

Answer 1

Respuesta:

f-8/9 = 5/9

x^2+2*x+2=0

8m-9> 71

7x=5

x/6-4= x/3-3

-x^2+6x+7=0

y^2-11y+28=0

|p|<= 18

20000000=11000x-(6000x+5000000)

factor 21x+9xy-12xy^2

826=12l^2+12l

7x^2-9=2

14+12v=-16+9v

(5x)^2+(5x+5)^2=(5x+10)^2

x^2-6x-49=-6x

factor 5^{x+2}-5^{x-1}

0,01^2

factor 5x^2+20x

8d-d-4d-8=5d

factor 3a2+7a

factor 3x^3-12x^2-45x

(12x+3)^{-1}< 0

4(x+3)-4=8(1/2 x+1)

simplificar 8^{1/3}

(3sqrt(3))^2

0.18a+0.4(10-a)=0.2(10)

x+2x+3x=-76

4+a_{n-1}a_{1}=2

3a+4+b+2a+5+b

9a^2+25a+16=a

factor 2(1+x^2)(2x^2-2xsqrt(x^2+1)+2)

-15> = 8k+9

2<= x<= 7

4*32

3x-9x+6=20-3x+4x

simplificar 10^{(3/10)}

factor x^2-5/2 x+25/16

34=162+32t-16t^2

factor 9x^2+9x+2

factor z^2-9z+20

2>-2

x^3-4x^2< 0

|v|=0

x2+3x+2=0

x^2+x-10=0

25c+20=125-5c

simplificar (6^{12})/(6^9)

1/4 x< 2

4x^2+7x-2<= 0

6*13

3x^2-5x-9=0

4x-3-2x=3x+4

r^2+2r=8

simplify (8!)/(4!*4!)

-1-3

factor 12x^3-2x^2-70x

3+2d<= 9

4m^2-6m=-360

simplificar (11^9)/(11^7)

simplificar ((2a^3b^4)^3)/((2ab^2)^5)

|3-6c|=|2c+3|

(4x^2z) (y^3z^2)

factor 2x^2-8x+2

factor n^2+6n+5

x^2+3x-40=0

2+3x< 12

2x+10+5x=31

2x^2+5x-5=0

2/(2sqrt(5))

(-3)/5+7 1/2 <= (-7x-11)/2+3< 8

1/2+3/5

g(1/5)=-(1/5)^2-2(1/5)-2

raíz cúbica de 64/1000

Explicación paso a paso:

eso encontre :V