Which of the following is the depressed form of x3+3x2+6x+5=0x^3 + 3x^2 + 6x + 5 = 0x3+3x2+6x+5=0?
t3+3t+1=0t^3 + 3t + 1 = 0t3+3t+1=0
t3−3t+1=0t^3 - 3t + 1 = 0t3−3t+1=0
t3+3t−1=0t^3 + 3t - 1 = 0t3+3t−1=0
t3−t+1=0t^3 - t + 1 = 0t3−t+1=0