x-2(x^(1/2))-15

Simple and best practice solution for x-2(x^(1/2))-15 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for x-2(x^(1/2))-15 equation: 


D( x )

x < 0

x < 0

x in <0:+oo)

x-(2*x^(1/2))-15 = 0

x-2*x^(1/2)-15 = 0

t_1 = x^(1/2)

1*t_1^2-2*t_1^1-15 = 0

t_1^2-2*t_1-15 = 0

DELTA = (-2)^2-(-15*1*4)

DELTA = 64

DELTA > 0

t_1 = (64^(1/2)+2)/(1*2) or t_1 = (2-64^(1/2))/(1*2)

t_1 = 5 or t_1 = -3

t_1 = -3

x^(1/2)+3 = 0

1*x^(1/2) = -3 // : 1

x^(1/2) = -3

( -3 < 0 i 1/2 in (0:1) ) => x należy do O

t_1 = 5

x^(1/2)-5 = 0

1*x^(1/2) = 5 // : 1

x^(1/2) = 5

x^(1/2) = 5 // ^ 2

x = 25

x = 25

See similar equations:

| 21c+10=9 | | -1+19=m-9 | | 40=-(5y-10)+5 | | 0.10x-0.35x^2=0 | | 2w^2+13=13 | | 10c-7=37 | | 9g+2=29 | | 4x+13+2x+35=90 | | -9q+2=-48.4-1.8q | | 4y+18=2x | | 2x^3=48 | | 4x+13+2x+35=180 | | -40x^2=5x^3 | | 49=32+w | | 7x+5(x+3)+4x-x-2=15x+13 | | 21=14+7t | | M/7-3=8 | | y=-7.4x-3 | | 4x+13=2x+35 | | 5x+6y=99 | | 2*(-6)/4=-2+(-1) | | 4(s+3)-2s=1 | | w^2=71 | | x-3=-15+2x | | -6x+7y=-84 | | 6+4-3+h=11 | | -3-x/8=-2 | | x+17=180 | | -13+4x=-7x+8(8x+5) | | 7x+4=2x-3 | | y=4c^2+64x+224 | | x=4/3(3.14)(27) |

Equations solver categories