Question

Решите уравнение:а)4х^2(1-х)=1-х
б) 3/х^2+4х-15/х^2-4х=4/х

Answer 1

$4^{2}*(1-x)=1-x\\4x^{2} *(1-x)-(1-x)=0\\(1-x)*(4x^{2} -1)=0\\1-x=0\\4x^{2} -1=0\\x=1\\x=-1/2\\x=1/2$