Question

Rearrange this expression into quadratic form, a x 2 + b x + c = 0 , and identify the values of a , b , and c .

Answer 1

completed question:Rearrange this expression into quadratic form, a x 2 + b x + c = 0 , and identify the values of a , b , and c .

`0.2=(x^(2) )/(85-x)`

Answer:

a=5, b=1, c=-85

Explanation:

`0.2=(x^(2) )/(85-x)`

0.2(85-x) =
`{x^(2)`

17-0.2x=
`{x^(2)`

`{x^(2)`=17-0.2x

`{x^(2)`+0.2x-17=0

multiply through by 5

`{5x^(2)`+x-85=0

comparing this equation to the general quadratic equation;

`{a^(2)`+bx+c=0

a=5, b=1, c=-85