Question

сократить дробь (2x^2+7x-4)(x^2-16)

Answer 1

2х²+7х-4=0, D=81, x1=1/2 U x2=-4
2(x-1/2)(x+4)/(x-4)(x+4)=2(x-1/2)/x-4=2x-1/x-4