А) ( x + 3)^2 - x = 33
x^2 + 6x + 9 - x - 33 = 0
x^2 + 5x - 24 = 0
D = b^2 - 4ac = 25 + 96 = 121
x1 = ( - 5 + 11) / 2 = 3
x2 = ( - 5 - 11) / 2 = - 8
б) x^2( x - 5)^2 = 10
x^2( x^2 - 10x + 25) - 10 = 0
x^4 - 10x^3 + 25x^2 - 10 = 0
на множители не ракладывается(((
в) ( x + 12)^2 = x(x + 8)
x^2 + 24x + 144 = x^2 + 8x
x^2 - x^2 + 24x - 8x = - 144
16x = - 144
x= - 9
г) ( x - 3)(x + 1) = ( x - 2)^2
x^2 - 2x - 3 = x^2 - 4x + 4
x^2 - x^2 - 2x + 4x = 4 + 3
2x = 7
x = 3,5