#1**0 **

short answer:

[input]solve( y=1/(2x)+1, y=-3x+8 )[/input]

long answer:

y=1/2x+1

y=-3x+8

1/(2x)+1=-3x+8**|-1**

1/(2x) = -3x+7**|*2x**

1 = (-3x+7)*2x

1 = -3x*2x+7*2x

1 = -6x^2+14x**|-1**

-6x^2+14x-1=0

p-q-formula (quadratic formula)

=>**{x=0.073760245949667, x=2.259573087383667}**

now insert both "x" in one of your equations:

=>**{y=1.221280737849, y=7.778719262151}**

[input]solve( y=1/(2x)+1, y=-3x+8 )[/input]

long answer:

y=1/2x+1

y=-3x+8

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

1/(2x) = -3x+7

1 = (-3x+7)*2x

1 = -3x*2x+7*2x

1 = -6x^2+14x

-6x^2+14x-1=0

p-q-formula (quadratic formula)

=>

now insert both "x" in one of your equations:

=>

admin
Jan 27, 2012