1)(8x+1)(2x-3)-(4x-2)^2=1 2)x^3-144x=0 3)x^4-10x^2+9=0

1) (8х + 1)(2х - 3) - (4х - 2)^2 - 1 = 016х^2 - 24x + 2x - 3 - (16x^2 - 16x + 4) - 1 = 016x^2 - 24x + 2x - 3 - 16x^2 + 16x - 4 - 1 = 010x - 8 = 010x = 8x = 0,82) x^3 - 144x = 0x (x^2 - 144) = 0а) x = 0;б) x^2 = 144x = 12; -123) x^4 - 10x^2 + 9 = 0x^2 = tt^2 - 10t + 9 = 0D1 = 25 - 9 = 16; корень из D1 = 4t1 = 5 + 4 = 9; t2 = 5 - 4 = 1a) x^2 = 9x = 3; -3б) x^2 = 1x = 1; -1