Question

7x - 1 = ( 2x -3 ) ( 2x + 3 ) ×2×x

Answer 1

ПФФФФФФФФФФФ
7Х-1=(2Х-3)*(2Х+3)*2*Х
7Х-1=4Х+6Х-6Х-18Х
7Х-4Х+6Х+18Х=1
27Х=1
Х=1:27
Х=0.(037)