3/8(x=8)+1/8x=-1/2(x-7)
multiply by 8
3/(x-8) + 1/x = 4(x-7)
multiply by x
3x/(x-8) + 1 = 4x(x-7)
multiply by (x-8)
3x + (x-8) = 4x(x-8)(x-7)
3 x + x - 8 = 4x(x^2 - 15 x + 56)
4 x - 8 = 4 x^3 - 60 x^2 + 224 x
4 x^3 - 60 x^2 + 220 x + 8 = 0
x^3 - 15 x^2 + 55 x + 2 = 0
Google for polynomial solver
The roots of the polynomial x3−15x2+55x+2 are:
x1=−0.03601
x2=6.52858
x3=8.50743
Solve the equation
3/8(x=8)+1/8x=-1/2(x-7)
1.4x-3.1=0.2(x-27.5)
2 answers
Thanks