Объяснение:
(2x+4) (4x-3) -5 = (3x+5)(6x-7)
8x²-6x+16х-12 -5 = 18x²-21х+30х-35
8x²+10х-17 = 18x²+9х-35
0= 18x²+9х-35-8x²-10х+17
0= 10x²-х-18
х₁ ₂= 1±√(1+4*10*18) /20
х₁ =( 1-√721) /20
х₂ = (1+√721) /20
