Question

Решите уравнение :
(5х-1)^2-2=(10х+1)^2/4-3

Answer 1

(5x-1)²-2=((10x+1)²)/4-3
(5x-1)²-2=((10x+1)²-3*4)/4
4*((5x-1)²-2)=(10x+1)²-12
4*(25x²-10x+1)-8=(100x²+20x+1)-12
100x²-40x+4-8=100x²+20x-11
100x²-100x²-40x-20x=-11-4+8
-60x=-7
x=7/60