Question

(x3 + 5x2 -2x – 24) ÷ (x – 2)
(x2 + 11x + 30) ÷ (x + 5)

Answer 1

Respuesta:

vamos con la formula general: x=( -b+-√b^2 - 4ac ) / 2a

3x²-5x+2=0

a=3, b=-5, c=2

x=(-(-5)+-√(-5)^2 - 4(3)(2) )/2(3)

x=(5+-√25-24)/6

x=(5+-√1)/6

x1=5+1/6=1

x2=5-1/6=2/3

4x²+3x-22=

a=4,b=3,c=-22

x=(-(3)+-√(3)^2 - 4(4)(-22) )/2(4)

x=(-3+-√361)/8

x1=-3+13/8=2

x2=-3-13/8=-2

x²+11x+24=0

a=1,b=11,c=24

x=(-(11)+-√(11)^2 - 4(1)(24) )/2(1)

x=-11+-√25/2

x1=-11+5/2=-3

x2=-11-5/2=-8

x²-16x+63=0

a=1,b=-16,c=63

x=(-(-16)+-√(-16)^2 - 4(1)(63) )/2(1)

x=16+-√4/2

x1=16+2/2=9

x2=16-2/2=7

9x²-12x+4=

a=9,b=-12,c=4

x=(-(-12)+-√(-12)^2 - 4(9)(4) )/2(9)

x=12+-√0/18

x1=12+0/18=2/3

x2=12-0/18=2/3

 

espero te ayude :)